Some of the users are complaining that there recipients are getting two copies of every email on intermediate basics.We have exchange 2003 sp2 with all latest patches and hotfixes and clients are using outlook 2003 sp3, When we checked the problematric user outlook problem then he has only sent a one mail,sent items showingsingle copyonly,,subsequently if you track the message for that user then exchange shows you two emails with different message id from user at same time.Hence all the recipeint of that email are getting duplicate copy of emails, its happening intermediate.......with group of users.........So far we have done......1. Local machine antivirus2. Any local rule for problemetric users profile3. Latest patches for workstation.any suggestion ont this

Its happening only for internal emails within administrative groups...no external emails reported yet.

Some of the users are complaining that there recipients are getting two copies of every email on intermediate basics.We have exchange 2003 sp2 with all latest patches and hotfixes and clients are using outlook 2003 sp3, When we checked the problematric user outlook problem then he has only sent a one mail,sent items showingsingle copyonly,,subsequently if you track the message for that user then exchange shows you two emails with different message id from user at same time.Hence all the recipeint of that email are getting duplicate copy of emails, its happening intermediate.......with group of users.........So far we have done......1. Local machine antivirus2. Any local rule for problemetric users profile3. Latest patches for workstation.Its only happening with internal emailany suggestion ont this

Increase the Diagonostic Logging on Default SMTP VS and check for the logs. and see where it is going wrong. also make sure the recipient is always same everytime? whenever this issue happens? Vinod |CCNA|MCSE 2003 +Messaging|MCTS|ITIL V3|

Check info: 1. Whether the issue occurs intermittently or permanently for problematic senders? 2. Does the issue happen to new composed messages or replied messages? 3. Quote: Its happening only for internal emails Does it mean that the mails from problematic wont be duplicated for external recipients? 4. Can the issue be reproduced via OWA? 5. Which protocol do users use, exchange account (MAPI), POP3 or IMAP4? 6. Is there any similarity among the problematic senders, like same mailbox store, or same exchange server? 7. Are the problematic recipients also the smartphone (BlackBerry) users? 8. Please disable all the 3rd party software temporarily and test the issue, including the Anti-Virus software Resources: Duplicate E-Mail in Exchange 2000

hi here are the answer 1. Whether the issue occurs intermittently or permanently for problematic senders?Its intermittently 2. Does the issue happen to new composed messages or replied messages?in both the way, but usually its when replied messages 3. Quote: Its happening only for internal emails Does it mean that the mails from problematic wont be duplicated for external recipients?Yes, its only relates to internal 4. Can the issue be reproduced via OWA?User never checked through OWA as outlook is a primary client 5. Which protocol do users use, exchange account (MAPI), POP3 or IMAP4?POP3 and IMAP4 IS disabled on exchange.. 6. Is there any similarity among the problematic senders, like same mailbox store, or same exchange server?No. 7. Are the problematic recipients also the smartphone (BlackBerry) users?Not all, some of them have blackberry enabled account 8. Please disable all the 3rd party software temporarily and test the issue, including the Anti-Virus software As its intermittently, does the advisable to test disable 3rd parrty.

couldn't find default SMTP VS settings in diagnostic, do you mean SMTP protocol under MSExchangeTransport....... And how it will benifited as its happening intermediately.Not able to find out any clue..Any other thoughts from anyone

I have seen some 3rd party software that can cause same symptom on the exchange server, so please check if thats the issue Yes, I believe thats what Vinod means, which may bring us some clue about the cause of this issue How to Modify Logging Settings for MSExchangeTransport