I'm have a baffling problem. The users at one of our remote sites are experiencing intermittent loss of e-mails. Both incoming an outgoing. Some users are using exchange over http others through pop/smtp. Our setup is a single Exchange 2003 server. I cannot find anything really out of the ordinary in any logs. There are a few rejected messages due to e-mail address misspellings. Anytime I've remotely connected to one of the affected machines my test messages always work. Nobody here at our main office or any of our other satellite offices claim to be having this issue. I am not a very experienced exchange administrator and am at a loss to explain what is happening. Any suggestions of what to try or settings to look for? Thanks, David

On the Exchange 2003 ESM , navigate to Administrative group\....\server\your_server\your_Storage_group\your_mailbox_store\LOGONS right click properties and add columns. Add appropriate columns and you woudl be able to see the client sessiosn in al time alongwith versions. Monitor it for suspecting ones . You can also do a perfmon for saving the logs. Also can enable diagnostic logging for Extra events Select Your_server_name in ESM and riht clicking to properties. Select Diagnostic logging for msexchangeis selected fields in system and mailbox.

On Thu, 14 Oct 2010 19:46:20 +0000, David_Crowdis wrote: >I'm have a baffling problem. The users at one of our remote sites are experiencing intermittent loss of e-mails. Both incoming an outgoing. Some users are using exchange over http others through pop/smtp. Our setup is a single Exchange 2003 server. I cannot find anything really out of the ordinary in any logs. There are a few rejected messages due to e-mail address misspellings. Anytime I've remotely connected to one of the affected machines my test messages always work. Nobody here at our main office or any of our other satellite offices claim to be having this issue. I am not a very experienced exchange administrator and am at a loss to explain what is happening. > > > >Any suggestions of what to try or settings to look for? The 1st place to look is the message tracking logs. The 2nd thing to look at is "Tools | Recover deleted items...". Select each folder and use that manu item to see if the messages have simply been shift+deleted (which is what a POP3 client will do). Check the Outlook profiles for PST files and examine the PST file for the missing e-mail. If the mailbox is used by multiple POP3 clients good luck finding the PST files -- they're probably on a machine at home. :-) The 3rd place to look is the View used on each folder. When a problem is isolated to users at one location, the 1st thing to suspect is a local "expert" giving poor advice on how to use Outlook (or whatever e-mail client is in use). --- Rich Matheisen MCSE+I, Exchange MVP --- Rich Matheisen MCSE+I, Exchange MVP