I have just experienced a STRANGE problem. We are running Exchange 2007 SP3 and Outlook 2007. One of our users (User A) have received an autoreply from a former employee (User B), which should be fine, but User A have never sent the mail to User B. If I check the mailbox for User B, I can see that a mail have been received from User A. I have checked Sent Items for User A and can't see the mail and it's not in Deleted Items. I have checked Message Tracking on the Exchange server for mails send and received by User A, and can only see the autoreply. Any clues? Lasse/Lasse

Maybe user's A email address was spoofed to send email to user B or user's A's email address was used to send via a relay using some app. Does Exchange 2007send email directly to the internet or do you have an edge or smarthost? If so check the mail logs and see if a sent email went out possibly via relay. James Chong MCITP | EA | EMA; MCSE | M+, S+ Security+, Project+, ITIL msexchangetips.blogspot.com

Is it possible this is an orphaned delegate issue? User A sent email to user C who used to have User B as a delegate, and an auto-reply in User B's mailbox is invoked? Just a thought.

Sounds like classic delegate issue. http://blog.sembee.co.uk/post/Account-Does-Not-Exist-Error-When-Appointment-Sent-to-Another-User.aspx Simon.Simon Butler, Exchange MVP Blog | Exchange Resources | In the UK? Hire Me.

Hi LasseF, Any update for your issue? Above gave some good suggestion. Regards!Gavin TechNet Community Support

Have been away on holiday, so haven't seen your replies earlier. I will look in to the Delegate part and get back to you. We send out mail through a Smarthost, but I can see everything through a website and no mails have been received og sent./Lasse

I have just checked Delegate. On the senders (User A) Delegate list User B is listed but only with Read permission on User A's Inbox and no other users are listed. I have just checked with Message Tracking again, and I made a mistake when I wrote my first post. I can see that the mail have been sent from User A to User B., but that doesn't change the fact that User A never sent the mail and I can't find it anywhere in Sent Items, Deleted Items or???? STRANGE :-)/Lasse

Hi LasseF Please check whether there are some transport rules to forward the emial from A to B, like you referred, the tracking log showed the email was sent from A to B, it prove it. Regards! Gavin TechNet Community Support

Hi LasseF Please check whether there is some transport rule to forward the emial from A to B, like you referred, the tracking log showed the email was sent from A to B, it prove it. Regards!Gavin TechNet Community Support

Hi Gavin What do you exactly mean by Transport rule? I have checked the delivery options and they are ok, no forwarding. For me, this is really strange. Since I can see the mail in the tracking log, it means that the mails was actually sent from within the domain and not from an external source which is confirmed by the fact that our incoming mail check has no record of the mail, and it shows every mail from outside the company./Lasse

Hi LasseF, Could you plese post the tracking log here for the email, then we could analyze it for you. The transport rule means: http://technet.microsoft.com/en-us/library/bb421708(v=exchg.80).aspx Then, if you still have confused things, please feel free let my know. Regards!Gavin TechNet Community Support

Hi LasseF, Could you plese post the tracking log here for the email, then we could analyze it for you. The transport rule means: http://technet.microsoft.com/en-us/library/bb421708(v=exchg.80).aspx Then, if you still have confused things, please feel free let my know. Regards!Gavin TechNet Community Support

Hi Gavin We have just enjoyed a holiday, so haven't replied earlier :-) We have no Transport rules. 2012-05-06T21:00:01.908Z,::1,EXCH01.domain.dk,::1,EXCH01,,,STOREDRIVER,RECEIVE,98719,<,lhp@domain.dk,,725084,1,lhp@domain.dk,,Subject,HUA@domain.dk,HUA@domain.dk">62E8B69A4C99764F9086DCC6D5C00DC8026019F987BA@EXCH01.domain.dk>,lhp@domain.dk,,725084,1,lhp@domain.dk,,Subject,HUA@domain.dk,HUA@domain.dk, 2012-05-06T21:00:01.924Z,,,,EXCH01,,,ROUTING,REDIRECT,98719,<,abo@domain.dk,,725336,1,,98719,Subject,HUA@domain.dk,HUA@domain.dk">62E8B69A4C99764F9086DCC6D5C00DC8026019F987BA@EXCH01.domain.dk>,abo@domain.dk,,725336,1,,98719,Subject,HUA@domain.dk,HUA@domain.dk, 2012-05-06T21:00:01.986Z,,,,EXCH01,Resolver,,ROUTING,TRANSFER,98721,<,lhp@domain.dk,,725274,1,,,Subject,HUA@domain.dk,HUA@domain.dk,2012-05-06T21:00:01.861Z">62E8B69A4C99764F9086DCC6D5C00DC8026019F987BA@EXCH01.domain.dk>,lhp@domain.dk,,725274,1,,,Subject,HUA@domain.dk,HUA@domain.dk,2012-05-06T21:00:01.861Z 2012-05-06T21:00:02.205Z,,EXCH01,,exch01,,,STOREDRIVER,DELIVER,98720,<,HUA@domain.dk,,10340,1,,,SV">62E8B69A4C99764F9086DCC6D5C00DC802601A13CB53@EXCH01.domain.dk>,HUA@domain.dk,,10340,1,,,SV: Subject,abo@domain.dk,abo@domain.dk,03I: 2012-05-06T21:00:02.891Z,::1,EXCH01.domain.dk,::1,EXCH01,,,STOREDRIVER,RECEIVE,98723,<,HUA@domain.dk,,10466,1,,,SV">62E8B69A4C99764F9086DCC6D5C00DC802601A13CB53@EXCH01.domain.dk>,HUA@domain.dk,,10466,1,,,SV: Subject,abo@domain.dk,abo@domain.dk,2012-05-06T21:00:02.875Z 2012-05-06T21:00:02.938Z,,EXCH01,,exch01,,,STOREDRIVER,DELIVER,98723,<,GFU@domain.dk,,724871,1,,,Subject,HUA@domain.dk,HUA@domain.dk,04I">62E8B69A4C99764F9086DCC6D5C00DC8026019F987BB@EXCH01.domain.dk>,GFU@domain.dk,,724871,1,,,Subject,HUA@domain.dk,HUA@domain.dk,04I: Lasse/Lasse

I am getting ready to give up on this issue! :-) Just can't understand how this is possible, but might have looked at the problem/issue so much that I have become a bit "blinde". With no transport rules, Outlook rules, delegates or anything else............ I have said it before and I will say it againg....... STRANGE :-)/Lasse