Hi, I have been having problems with Outlook 2013 and synchronization of IMAP folders. When I open Outlook it works fine for 15-20 minutes and then Send/Receive for some of the IMAP accounts gets stuck. The task Synchronizing subscribed folders for stays with Processing forever and never completes.

Subsequent Send/Receive actions do not retrieve new emails. I have to manually cancel the task that is stuck and then be able to receive new emails.

This behavior happened quite randomly, I havent been able to identify a pattern but it makes Outlook 2013 useless because I have to constantly check if the Send/Receive is stuck. I tried deleting and recreating my email accounts but this did not fix the problem.

Another odd behavior I am seeing is the Sync log issues. Again quite randomly Outlook 2013 will start synchronizing a folder and this will continue indefinitely. Within an hour the Sync Issues folder will get thousands of entries like this one:

13:15:07 Synchronizer Version 15.0.rup
13:15:07 Synchronizing Mailbox ''
13:15:08 Synchronizing server changes in folder 'IvanL'
13:15:09 Done

It seems as if Outlook goes into a loop. After a restart it works fine for some time and then the above problems start happening again.

Any help is much appreciated.

Thanks

Based on the sync log, there might be something wrong in the IvanL subfolder. I suggest you logon your mailbox through web-based access and move all of items from IvanL folder to another new creating folder and then sync from Outlook client to check if the issue still persists.

You may also first disable AVG/Firewall and run Outlook.exe in safe mode ("Outlook.exe /safe") to test the result.

Cheers,
Tony Chen
Forum Support
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Hi Tony,

Thanks for your reply. I tried what you suggest but even in safe mode I get exactly the same issues. I also tried creating a completely new Outlook profile and recreated all the accounts but the above problems still persist. I have four IMAP and one POP3 accounts.

There is nothing wrong with the IvanL folder. I tried removing the IMAP account where this folder is and the same problems continue to happen. The log file just shows a different folder.

By the way I installed Office 2013 on another machine and get exactly the same problems.

I feel that there is something wrong with the way Outlook 2013 does the IMAP synchronization. I have been using 2007 and 2010 for a long time with the same IMAP and POP3 accounts and have never had any problems.

It is very frustrating that 2013 doesn't work properly, at least in my case.

Ivan

Ivan,

I've been having exactly the same issues. In fact, I found this question through a Bing search for Outlook 2013 problems! As in your case, I was running 2010 with no problems at all and I just installed 2013 yesterday! So it didn't take very long for it to stop working. I, too, ran in safe mode and it didn't help.

I'm hoping someone else can provide us with another solution.

Lynn

Lynn,

All this seems to me as a bug in Outlook 2013. I looked at my email server settings and I don't believe there is anything wrong with it and Outlook 2007 and 2010 ran without problems. My hosting provider runs SmarterMail.

I found something interesting though. If I open Outlook 2013 and don't click on any of the folders, it works fine. It does Send/Receive every x minutes without problems. If I click on a folder, soon after that it starts doing the synchronization and after a while it goes mad - starts generating sync issues like crazy and at some stage gets stuck.

Ivan

Ivan,

Mine doesn't even do that! It just sits there. It looks like it's going through the process to send/receive mail and it does send, but it doesn't receive. I also get a message about the certificate every time I open Outlook - something about the certificate of the website not being valid. I have Live Mail for crying out loud!

I've been searching and haven't found any answers yet. Let me know if you get this resolved.

Lynn

Got a similar problem, there seems to be something different in IMAP4 synchronization in Outlook 2013.  Also, I can get mine to sync but I can't get it to purge.  Comes up with a send/receive error.

Just curious, are we all using a non-Microsoft IMAP4 service, i.e. not Exchange?

Yes, something has definitely changed in the way synchronization with IMAP works and in my case it doesn't work property at all.

My hosting provider has SmaterMail.

I'm not using any program, just trying to sync with live.com on the web. It's always worked before, although there has usually been a program I've had to install to get it to work. You'd think it would be easy since MS provides live.com and MS provides Office!

OK, my son found the answer for me. It's on this site under "Office 2013 doesn't sync with Live Mail."

I simply had to change the server to m.hotmail.com. This fixed the problem for me because when I installed Office 2013, it created an Exchange email account for my Live Mail. I deleted the "old" (IMAP) account and changed the server on the Exchange account and it worked.

I'm hoping that this might strike a chord with you and give you an Aha! moment! :-)

Good luck!

Lynn

The account I'm having a problem with isn't Smarter Mail but it's definitely not Microsoft.  Some sort of open source thing they've customized.

I have had enough with Outlook 2013 and switched back to 2010 - works without any problems. I don't understand how 2013 was release with such issues.

I am having the same issue with MS Outlook 2013 as well.

Worked fine with 2010 but since I moved to 2013 a few days ago It's stuck on sync subscribed folders on both of my IMAP accounts.

Thinking about switching back to 2010 as well

Same problem here.

Same problem here as well. Installed Win 8 Pro on a clean HD, then installed office 2010, no AV or other programs. Office 2010 refused to correctly sync any of my 4 imap (aol) email accounts. It simply returned errors .....

So Ok, I decided to obtain and install Office 2013 and guess what ?? Same problem !

2010 worked fine with Win 7 but using exactly the same settings wouldn't work with Win 8 and it appears that 2013 is the same. Judging by the amount of questions on the web, it looks like this is a major issue that Microsoft are remaining very tight lipped about.

Not at all happy !!!!!

Just to say I'm having the same issue with syncronising outlook 2013 and i'm on virginmedia imap account.  Only seem to get the last few days emails showing in the inbox.  It did sync all up at first but then they disappeared from view.  Emails are there in the virginmedia webmail.

I have 2 other mail accounts set up in outlook 2013, one hosted exchange and the othe Zimbra and these seem fine.

I'm also experiencing wierd synchronisation  issues with Outlook.

If i delete emails in Outlook 2013, or move them to folders, it doesnt actually sychronise these changes on the server. It is as if it is just caching the inbound emails locally as if it was "POP". I have tried deleting the profile in Outlook and re-creating it, but the issue persists.

same issues here.  tried to imap to gmail account and it wants to download all 20 gigs of emails...  not happy either..  the whole point of cloud based email is that it is cloud based...  hope to find a workaround or fix

Same problem here

Trying to sync my Yahoo mail account, using IMAP

It takes ages to sync everything (too many folders?) and I get hundreds of Synchronization Logs in "Sync Issues" folder, one every second (almost). But they are not really sync issues. Just logs.

Same issue I just installed 2013 and sync errors are filling up I was on 2010 and never had that issue

What's the point of being a Microsoft Partner, owning a Technet and MSDN subscription, paying thousands of dollars for it if Microsoft can't even read the damn forums?

Again, same issue here with GMAIL IMAP. It even gets to a point that Outlook just freezes up and I have to kill and restart it.

Having the same issues as everyone else with my IMAP account from 1&1.  Have had the same accounts working just fine with Win7 and Outlook 2010 for years.  Installed Outlook 2013 and couldn't get any email more recent than 7/31 to download in my inbox.  It doesn't freeze up... just goes through the sync process and then the sync process ends as though the process ended normally.

Installed Win 8 in a new partition, installed Outlook 2013 and have the same exact issue - nothing more recent than 7/31.  In sub-folders, however, all emails are current.  Been trying to get it to work for days now and finally gave up.  Installed 2010 (didn't un-install 2013) and within 5 minutes had ALL my emails downloaded. The other apps of Office 2013 (PowerPoint, Word, etc.) have some nice functionality so I'll most likely be uninstalling Outlook for now and just revert back to the 2010 version for the time being.  What really "kills" me though is the fact that I don't see anything here from Microsoft....not even a "we're working on it" post.  They expect a lot out of their partners but they cannot even follow the standards of customer service that they expect their partners to follow.  That is what really infuriates me more than anything.  I'm a software engineer and if we treated out customers the same way, we would have them jumping ship faster than anything.  Instead I guess Microsoft must feel like we're a captive audience and hence there's no sense of urgency here.

Reading all the posts it appears the typical troubleshooting has been done.  In order for us to figure out the root cause why IMAP is not working we will need to do more investigation and obtain log files.  I contacted a couple of people that posted and asked them to open support cases.  We will use those cases to help figure out a solution.  Once we have any workaround or fix I will come back and update the thread.  I apologize for all the difficulties getting IMAP to work.

I am having a similar issue... when sending and receiving on my IMAP account Outlook 2013 seems to duplicate messages randomly.

I am having similar issues processing IMAP mail using an a Linux-based mail server where mail is queued for sending in the Outbox but never sends.  I tried multiple passes with checkpst.exe on the .ost file, on the 2nd and subsequent passes it says there are minor inconsistencies, and repair is optional. I have to copies where this checkpst.exe popup (the one saying minor inconsistencies, repair is optional) does not have a repair button to push. I have never seen this with earlier versions prior to OUtlook 2013 Professional Plus.

With Outlook 2010 SP1, when I would use chkpst.exe it would always, or nearly always take three passes to fix an IMAP file. Pass 1 would report errors, pass 2 would report minor inconsistencies, and pass 3 would report no errors. Under Outlook 2010 SP1 going through that process, then opening up Outlook, doing some simple task (such as reading mail, or composing and sending mail), then closing Outlook and running chkpst.exe would result in chkpst.exe reporting errors.  Multiple attempts at removing the account, recreating it, or even starting with a new profile, always resulted in the same end result. Based on searching forums, this was not unique to me.

With Outlook 2013, the errors/inconsistencies cannot be fixed with scanpst.exe.

I want to commend Gabriel for saying that it actually looks like a bug.  In the vast majority of forum posts, the recommended resolution is to remove the profile and start over. While with Exchange this is not too much of a pain.

But with IMAP and desktop Outlook, all of the Outlook rules that sort mail into different folders have to be manually fixed because Outlook cannot find the specified folder. And, if you have to reconstruct your calendar various undesirable things can happen if you are not careful such as sending invites to people for old meetings.

What is stunning to me is with all of the challenges Microsoft is having across the board, the product planning people decided to change the UI (the veneer) but have not addressed basic operational problems with Outlook. For example, automatic reliable consistency checking should have been built in years ago. Chkdsk.exe is tedious tool which may have been state of the art in the Windows 3.1 era in the 1990s, but forcing the user to do one pass at a time on one file at a time is insanity.

I suspect that these problems with file errors are made worse by all the of various sync tools required to make it work with mobile devices. Based on complaints about Windows 8, Office 2013 UI, and the problems with Outlook, it seems from the outside that Microsoft by neglect and by misguided actions is doing monumental damage to its loyalty of small business/SOHO users who don't operate an Exchange server.

Of course, Microsoft now advertises a hosted Exchange service, pretty good pricing compared to others, but I for one am not at all sure Microsoft deserves my business going forward.  I think you are beyond hope.

Same issues here: Win8 x64, Outlook 2013 w/ no add-ins, ideally running against Exchange, 2 IMAP, and outlook.com for calendar & contacts.  Unfortunately there are tons of sync issues (just Bing it or search this site--there are tons of posts about it) with outlook.com via ActiveSync, and I'm even having problems adding just 1 IMAP account with nothing else.  It appears to have most/all of the messages, but even if I disable send/receive groups) Outlook gets stuck synchronizing the inbox (which has <75 messages) and sits at 50% CPU (which, incidentally, does nice things for my laptop battery life) and slowly climbs to ~2 GB RAM usage until it hangs and the process restarts.  I had the exact same issues with the Preview (in addition to messages randomly being deleted from the inbox) and had to revert back to Outlook 2010.  Unfortunately I may need to do that again to stay sane--and all along I was looking forward to the supposed IMAP improvements in 2013... :(

Same problem here.  Please fix this!

P.S.  I just took a look at the HUGE IMAP log files on the server (hundreds of MB/day since installing Outlook 2013), and there are millions of lines like these (approximately 700 per second):

12/12/12 20:32:29 IMAP-IN  5452 <IP> NOOP NOOP * 6 EXISTS 48 11 <domain> <accountname>

Hi,

This is just to update that the product group confirmed that this was a bug in the customer preview build of Outlook 2013...which was fixed in the RTM build (15.0.4420.1017).

If user's on here are still facing synchronisation issues with IMAP while already being on the RTM build..please let us know.

Thanks

Rocky

Hi Rocky, I am running an RTM build; Outlook 2013 (15.0.4420.1017) MSO (15.0.4433.1506) and having IMAP sync issues against Gmail (endless loop)

My experience is that I needed to archive all messages, then I re-created the Outlook account which creates a new data file PST/OST).

Then I didn't get the endless syncing, send/receive errors etc.. However I did get all sorts of other problems with Categories and other issues.

I have removed Office 2013 and gone back to Outlook 2010

Hello Tzur,

Thanks for your reply. Could you please explain a little more in detail on the IMAP sync issues you are seeing. And what do you mean when you say "endless loop".

Thank You, Tzur.

Regards

Rocky

I have the issue that OL2013 does not auto-sync the email folder on first start. I found that when clicking on Calendar and People and then back to email, it starts loading the emails.

Rocky,

My report above on the sync issue is based on the RTM build with whatever updates Microsoft Update has applied.

Further, I have been unable to get a clean scanpst.exe pass with my IMAP file or my POP3 .pst file. If I get errors, multiple passes will report 'minor inconsistencies, repair is optional', and there is no "Repair" button to push. I think this happens 100% of the time, but am not completely sure.

The scanpst behavior is the same whether on my .ost IMAP file which does not use any third party sync utilities, or my POP3 account, which does use a 3rd party sync program to sync to Google Contacts and Calendar. 

I am getting similar results on two computers, both with 64 bit Windows 7, and 32 bit Office 2013.

Removing the IMAP account profile and recreating it has fixed the sync inconsistencies but the scanpst.exe failures are continuing as described, I cannot get a clean pass.

With Outlook 2010 and the same mail servers and accounts, multiple passes of scanpst.exe would result in a clean pass.

Hi Rocky,

When I perform a full IMAP sync with Google's Gmail it gets stuck on a specific mail item. As a result, in folder's view I can see events generated for "sync error". Attempting to retrieve that specific mail item would not resolve and stay open for hours (until forcefully closed).

Setting the Outlook's mail retention to any period after that specific mail item would result in a successful sync 

I have the issue that OL2013 does not auto-sync the email folder on first start. I found that when clicking on Calendar and People and then back to email, it starts loading the emails.

Same behavior here - no sync on startup. Need to specifically update the Inbox folder or move to another folder and the back to the Inbox to start sync.

@CharlzS:  What you describe where "no sync on startup" is different from what I and others are reporting.

Hi Rocky - I'm running the RTM build and still getting IMAP synchronization issues.  Works most of the time, but then sporadically I run into one of these two states, each of which needs a restart of the application for it to begin working again:

1) Stop getting new mails (sent mail & other folders continue to synch fine - is there a way to force synch the inbox (other than send/receive)?)

2) Outlook freezes on send (5 mins+ and I give up and close & restart the app; note that sometimes it seems to take up to a minute to send as well - figure something is wrong here too)

let me know what I can do to help debug or correct on my end.  connecting to gmail fwiw

thanks

--s

Have you tried disabling unnecessary Add-Ins?

Go to File/Options/Add-Ins then Manage Com Add-Ins and click Go. Remove the tick from un-needed Add-Ins and restart Outlook 

I am on RTM and Outlook 2013 freezes up every so often when syncing GMAIL. It makes Outlook completely unusable. I have resorted to Windows 8 Mail until a fix is available.

Check this out.

http://www.slipstick.com/featured/what-you-need-to-know-about-outlook-2013/

Outlook 2013 doesn't work with GMail. Maybe this is true for other mail servers like Smarter Mail?

But Windows Mail does work with GMail etc..

Nice one Microsoft.

Same issue here for me. Synchronizing message is constantly on. CPU usage up around 60% constantly (on a quad core). RAM slowly builds up to around 2.3GB usage. System becomes unusable if i leave Outlook 2013 running. Windows Live Mail handled IMAP fine with no issues!

Wife......isn't......happy.

Check this out.

http://www.slipstick.com/featured/what-you-need-to-know-about-outlook-2013/

Outlook 2013 doesn't work with GMail. Maybe this is true for other mail servers like Smarter Mail?

But Windows Mail does work with GMail etc..

Nice one Microsoft.

With ActiveSync, you are right. But IMAP should still work which is the issue at hand here.

The key point being that because Gmail no longer works with ActiveSync, even more people will be trying to use Outlook 2013 with IMAP4 which appears to be bug-ridden.

I still have the issue. Is any way for Outlook to use GMail if we configure it as something else? E.g., another version of imap, or a different server.

POP3.

Outlook team,

I have had the same issues as everyone stated here since preview and now it continues into RTM.

A solution that works for me is to ensure the Windows Mail client is also running and then to restart Outlook which appears to kick it. I notice TLS protocol errors in my logs - would be nice of Outlook to actually state an issue as the "fix" now appears to be - just ignore the issues and hope no one notices.

It's a bit hard not to notice when the Outlook IMAP sync is 24 hours behind.

Outlook team - start responding to peoples forum posts with advice and detail.

I shall be contacting senior management today as clearly the product is bug ridden and the communication from this team is appalling.

I'm having the same issue with Gmail. My Sync Issues folder filled with 8004010F-0-0-720 errors and folders cannot sync automatically.

We need an ugrent fix!

I unchecked a bunch of add-ins that I don't use and restarted Outlook 2013. Now the Sync folder doesn't even show up in my Gmail account. Not a problem for me unless it is not actually synching with my other devices. I'll find out soon enough.

Hi Brennon - any luck getting some real attention from MSFT senior management or the like?  I'm growing increasingly frustrated myself (see the random set of advice here: http://social.technet.microsoft.com/Forums/en-US/officeitpro/thread/947161e8-5791-4720-a6b1-1472e2bffb1e) and am beginning to think that I should just give up on Outlook . . .

--S

I installed Outook 2013 yesterday - and had the same problem. I solved it with removing Outlook from Windows Search.

Please tell if it does help.

pholki

In case this helps anyone:

I was/am having a problem very similar to Ivan L (original poster), but also found an error code in the Sync Issues folder:

Error synchronizing folder
[800CCC0F-0-0-560]

which pointed to a problem in one of the folders it was trying to sync. While I still can't sync that particular folder (contents show up fine in a web browser), at least I found a work-around that allows everything else in Outlook to keep working (mine would eventually hang after 20-30 min of continual Send/Receive).

The work-around I pieced together was this (thanks to contributors from a few of these similar threads):

1) Unsubscribe from all the folders it will let you (right click the account and choose IMAP Folders...)

2) Remove the IMAP account from the automatic Send/Receive group (I've found that new messages seem to show up anyway without it).

With these steps, I can now at least USE Outlook 2013 with IMAP.

(The problem remains, how to sync the problem folder. Now when I click it, Outlook attempts to sync it but nothing happens and Outlook eventually hangs after 20-30 minutes. If I go back to the Inbox before it hangs, the sync attempt stops and it successfully syncs the Inbox instead, so I can keep using it.)

Hi,

I'm running Office 2013 that I downloaded through the HUP.  Outlook build is 15.0.4454.1002.

I have not run into the endless loop issues that others are reporting, but after seeming to work fine for about a week, it now will not delete messages from the server when I delete them in Outlook.  I use an iPhone and an android tablet to access the same IMAP account.  If I delete the message in Outlook, it will only mark it as read and still appears in the in box on both the iPhone and tablet.  If I delete a message on the tablet or iPhone, it will then disappear on Outlook.

The other issue I've noticed is that Outlook seems totally random in terms of when it actually downloads new mail.  At startup, Outlook acts as though it is syncing, but nothing appears.  Then a minute or so later, messages magically appear.

Outlook 2010 had its issues, but at least it performed basic IMAP functionality.

I am having identical issues. Deleting the OST file related to the gmail IMAP account seems to solve the problem for about 3 days, and then it's back - messages deleted in Outlook remain in the iPhone/Gmail inbox. Running build 15.0.4454.1511

Ok same problem here.

I got gmail to work by disabling the avast add-in via Outlook 2013.

But can't get yahoo to work with the IMAP account, tried deleting recreating the account. Mine is very peculiar problem the yahoo accounts syncs till 2009 and nothing after 2010. Was working perfectly with outlook 2010. Will try a bit more to get it to work.

If anyone finds anything please post. Looks like MS dosen't give a $hit.

Fixed.

For Yahoo

Make sure you are on yahoo7 and under 'mail options' -> 'pop & forwarding' -> 'access yahoo 7 via pop' is On. In outlook 2013 under account settings, delete your exiting yahoo account and Create a new account -> choose 'Email account' -> choose 'Email account' option again and fill in your details (do not configure manually as we'll use EAS here, configure manually only if you have a business account with the details provided by the admin or post me and i'll send it.). This should do it. 

For Hotmail

In outlook 2013 under account settings, delete your old hotmail account (if its giving sync issues) and Create a new account -> choose 'Email account' -> choose 'Manual Setup or additional server types' -> Choose 'Outlook.com or Exchange ActiveSync compatible service' -> Fill in your details and under Mail Server type 'm.hotmail.com'. Click next and this should do it. 

For Gmail

In outlook 2013 under account settings, delete your exiting Gmail account and Create a new account -> choose 'Email account' -> choose 'Email account' option again and fill in your details (do not configure manually as we'll use EAS here). This should do it.

R

I've found a possible workaround:

• go to Send/Receive > Send/Receive Groups > Define Send/Receive Groups
• edit the default group
• for each IMAP account select "Use custom behaviour below" and then unselect all folders under "Folder Options" (except of course your inbox if it is selectable at all)

I receive notifications on new emails in all accounts ..

Is Microsoft even working on this issue? I have a client with the same problem and I had to downgrade them to Office 2010 so he could get his emails.  Talk about a pain in the ass. He is using IMAP service from hover.com

I tried all the above methods with no luck. 

Well this is not solving the problem for me.
However this is helping a bit (cf. below), but it's not perfect. I have 2 gmail accounts and one one them takes a lot of time to sync. Before it could last for hours, now it's around 1-2min.
Hope this helps

GO to OUTLOOK

1) Navigate to File >> Options >> Advanced >> scroll down to the send/receive heading >> click on the send/receive button on the right
2) On the right hand side of the send/receive groups window that opens click on the Edit button
3) Un-check the "Get folder unread count for subscribed folders"
4) under Received mail items, check the option "User the custom behavior defined below"
5) In the window below that displays your Gmail folders just select inbox and leave the others unchecked
6) click ok and then exit out of options and perform a send/receive to test if it is now working

I was having an IMAP issue with Outlook 2013 on a Windows 7 computer, configured to retain messages offline for 3 months. It was working fine for about 2 months. Suddenly the Inbox started showing only the last week of messages. I went into the account properties, decreased the offline retention to 1 month, clicked OK, went back into settings, changed retention back to 3 months, clicked OK and visited the Inbox again. Voila, the last 3 months of messages appeared again.

I see Microsoft never posted a work around for this issue.  I've been on the phone to technical support twice with the sync issue (IMAP and gmail).  they don't seem to have a clue.  I am going to reinstall Outlook 2010.  Everything worked fine with 2010.

I had the same problem with IMAP.
My domain is on one.com and I have been running with Office 2013 for about a month and a half.
The problem occurred a few days ago where the inbox suddenly did not receive any emails.
No warnings popped up (M$: We really want warnings that affect reception of email to pop up), but after a few days wondering where my emails were, I checked the webmail where some 20 emails were waiting for me. (I don't get much spam)

After checking the sync folder where it reported sync errors:

18:57:32 Synchronizer Version 15.0.rup
18:57:32 Synchronizing Mailbox 'x@x.x'
18:57:32 Synchronizing Hierarchy
18:57:32 Error synchronizing folder
18:57:32                                           [8004010F-0-0-720]
18:57:32                1 folder(s) updated in online store
18:57:32 Terminated in error
18:57:32                                           [8004010F-0-0-720]

I tried deactivating addins and then compacted the ost-folder. Whichever of these things worked, suddenly I could retrieve email again...

I still gets sync errors (same as above) every once in a while, but at least mails are flowing again.

I had the same problem with IMAP.
My domain is on one.com and I have been running with Office 2013 for about a month and a half.
The problem occurred a few days ago where the inbox suddenly did not receive any emails.
No warnings popped up (M$: We really want warnings that affect reception of email to pop up), but after a few days wondering where my emails were, I checked the webmail where some 20 emails were waiting for me. (I don't get much spam)

After checking the sync folder where it reported sync errors:

18:57:32 Synchronizer Version 15.0.rup
18:57:32 Synchronizing Mailbox 'x@x.x'
18:57:32 Synchronizing Hierarchy
18:57:32 Error synchronizing folder
18:57:32                                           [8004010F-0-0-720]
18:57:32                1 folder(s) updated in online store
18:57:32 Terminated in error
18:57:32                                           [8004010F-0-0-720]

I tried deactivating addins and then compacted the ost-folder. Whichever of these things worked, suddenly I could retrieve email again...

I still gets sync errors (same as above) every once in a while, but at least mails are flowing again.

I too had this problem.

Compacted the OST and then things started working again.

Outlook was hanging forever with no network access on 'processing' on one of my IMAP accounts just as described.  Thank you for suggesting the compact.  I guess it does a check on the file too.

As for me I got rid of the imap thing altogether I had a 6 year backup of all my emails already so I started up the outlook 2013 from scratch using manual settings pop3, (not automatic imap) account and that took care of the constant synch problem, I used the carbonite backup program to get all my emails back to 2007 put back in place..be careful of them they have extra charges if you get in a bind, just pay close attention when they are doing their remote and just before they send you to the payment team tell them you would like to try it yourself first, and then call & pay if you cant still get you email history restored In My opinion the IMAP is a good thing, they just need to work out the bugs, hopefully soon

Very long thread on the same issue here as well. Microsoft silent there too.

I have observed something rather odd. I am using Windows 8 and I have the native Windows 8 e-mail app set up on the same machine with the same e-mail account that is giving the the IMAP sync grief. The account is a GMail account with a custom domain name. The odd thing is that the native Mail app has no sync issues whatsoever, whereas I see a sync issue reported every singly time I attempt to sync the account via Outlook. In addition, I use multiple clients to access this same account (web browser, Outlook, Android phone, Windows Phone 8, Win8 E-Mail client). Outlook is the only one that displays any sync issues.

Microsoft really needs to fix this issue.

I give up.

I have abandoned Outlook. I simply cannot get the IMAP sync to work. It works without issue on Windows Phone 8, Android (yes I use both), Windows 8 e-mail client, PlayBook (yes I use that too) and of course via a browser, but it will not work with Outlook. I have been experimenting with Thunderbird and it works flawlessly.

I can't waste any more time wrestling with this, so goodbye Outlook, hello Thunderbird.

Same issue here. Win8 x64 with Outlook 2013 32bit on gmail IMAP. First issue I've had with gmail, but it's very unfortunate that there hasn't been a fix since last year.

Have also one.com as Provider but never had Problems before OL 2013. I have also these sync Folder entries as reported and it always take a lot of time until my Inbox gets synchronized. This is definitely an Outlook 2013 issue and has to be fixed by Microsoft.  

Same issues here, with university account/provider. Use Win8 x64. OL2013 (32 bit) freezes upon IMAP synchronization. Have to close the program, restart it, the first synchronization works, but upon actively requesting "send/receive" OL2013 hangs. This bug has been around since (at least) October 2012, remarkable  there is no fix.

For anyone having issues with messages not showing up via IMAP in a timely manner (even when webmail and other email clients receive them close to instantly), try this workaround:

1. Open a main instance (window) of Outlook to use for testing.
2. Open a second instance of Outlook and point at the inbox of your first IMAP account.
3. Open a third instance of Outlook and point at the inbox of your second IMAP account.
4. Open a fourth instance of Outlook and point at the inbox of your third IMAP account.
5. until all accounts are represented by pointing at their inboxes in a separate window.
6. In the main instance, send test emails to all accounts in the profile.
7. Note that ALL accounts receive their email INSTANTLY (or close to it).

For some reason, the official production release of Outlook 2013 requires Outlook to be literally pointed at an IMAP inbox in order for it to respect IMAP delivery without delay. The only way around this is to have Outlook literally point at each IMAP inbox for which you want instant delivery of emails. If you are willing to leave all of these Outlook windows open during your session, you will receive your IMAP-account emails very quickly.

Microsoft Employee,

As you can see in this post, many people are having significant issues with IMAP folder synching in Outlook 2013. I happen to be one of them. THIS HAS TO BE RESOLVED IMMEDIATELY.... Why is no one paying attention. Basically, my Surface RT Pro is useless without resolving this issue... No wonder people gravitate towards Apple products; they just work. I am not sure why Microsoft cannot get something this basic correct, and DO NOT address when they hear comments from all these people.

AGAIN, I DEMAND A SOLUTION ASAP.

Microsoft Employee,

As you can see in this post, many people are having significant issues with IMAP folder synching in Outlook 2013. I happen to be one of them. THIS HAS TO BE RESOLVED IMMEDIATELY.... Why is no one paying attention. Basically, my Surface RT Pro is useless without resolving this issue... No wonder people gravitate towards Apple products; they just work. I am not sure why Microsoft cannot get something this basic correct, and DO NOT address when they hear comments from all these people.

AGAIN, I DEMAND A SOLUTION ASAP.

Hello Microsoft Team,

Can you please show some courtesy to your customers and give a feedback that you acknowledge this problem ? whether you are working on a solution ? when will the solution be available ?

Your Silence is saying we at microsoft simply do not care for you ? You've got our money when we purchased this software Outlook 2013 and beyond that seems you do not care anymore ?

Please have some sensibilities and customer responsiveness ? If you cannot fix this problem of several copies of email in Outlook 13 in IMAP orv GMAIL account, please take back your new software crap and either return our money or give us old working version.

Awaiting to hear from you.

Manish

Again, same problem over here. Imap doesn't work properly. Now I have to explain to my customer that his brand new Outlook is not able to do what his  dusty Outlook Express always did perfectly... is that the definition of progress ?

Hope some MS people will give help.

J.

This seems to be a workaround.  It worked for me in Gmail, but how annoying.  It seems to be okay with NEW tags created in Gmail then synced, but not existing ones.

From: http://www.outlookforums.com/threads/89746-outlook-2013-imap-issues/

1) Login to your webmail
2) Move all your mails from subfolders to your main inbox
3) Delete the subfolder from WebMail
4) Create new subfolders from Webmail
5) Now create a new IMAP account with Outlook 2013

This is really killing me.

Can someone please get Microsoft to ANSWER this incredible problem.

Regards

Pabco

I found the solution to the problem i was having not being able to syncronize my gmail imap folders.... I logged into gmail.com --> settings --> Labels tab. In the Labels section all of the folders i created under the inbox were named Inbox\Folder1, Inbox\Folder2, Inbox\Folder3.... I had to edit each label and capitalize Inbox so it read INBOX\Folder1, INBOX\Folder2, INBOX\Folder3. As soon as i did that all of my folders started to sync.

I am having the same issues.  My account will not sync with new emails