Your email account name shows up as outlook_[long series of letters and numbers]@outlook.com in the Folder Pane and when composing emails using Outlook for Windows. Recipients will also receive the email from the sender with the outlook_[long series of letters and numbers]@outlook.com format. Sometimes I have found that replication settings and/or updates to old emails in a replica will roll back to the server and be resent. Check his/her replication settings (if any) and look for how partial replication is set up.
I have a very interesting situation. First off: -Windows XP SP2 -Outlook 2007/POP3/Integrated with Bellsouth webmail The user is receiving multiple upon multiple duplicate emails from two or three different senders (not spam either). Once the emails are deleted, the user keeps receiving the same emails. Outlook is stuck in an infinite loop. The receive process cannot end because once Outlook starts to receive the third email,it freezes and then the 'Send Error Report' window pop ups, closes, and then Outlook starts, and the process starts again. I checked for AV synchronization-there is none User does not have the option checked to leave a copy of msg on the server the incoming/outgoing server options are correct outlook is not synchronized with a pda there is nothing wrong with the firewall there aren't any arbitrary rules checked I ran Outlook in safe mode and the process still happens I don't know what else to check. Like I stated, I believe Outlook is stuck in an infinite message loop.
I watched the receiving details and once it starts to receiving msg 3 of 14, it hangs,then the 'Send Error Report' from Microsoft pops up, like Outlook is trying to receive a msg that it can't. I'm puzzled and don't know what else to check and/or do. The server doesn't know you already received the email thus provides it again.
Typically, once you log in to the pop server, it provides you with the emails send/receive. The send/receive action alerts the pop3 server you have the emails. So it sounds like the send/receive action isn't telling the pop server you got the emails. I'd verify your pop3 settings and verify the send/receive actions in outlook. I believe you can configure Outlook to only receive new emails.
I'd also do a deep scan for malware. All is well now. I changd the send/receive settings for the user to download Inbox headers, which allowed the 'bad' email to be bypassed. Did a scan with Malwarebytes and found two rogue antispyware agents (don't know if that caused the problem), rebooted and then scanned the.pst files with the Outlook utility which came back with errors, repaired the errors, and now everything is fine. The user doesn't have to use the new porfile I made.
That was one of the weirdest problems I've had with Outlook so far. The malware, was a guess based on some threat vectors using email that I read about. The send/receive problem I've seen before with Outlook where send/receive was for all emails not just new emails.
So the user was getting dups. The POP3 server is supposed to log the transaction on download and then email is supposed to be gone. Sometimes that doesn't work. Some POP servers depending on what email system it is, has emails stay around for a period of time. So if the log in to the POP doesn't create a transaction the email looks like it hasn't been downloaded so it stays on the POP3 server. That senario was the malware vector I read about. So you always get the bad email in your inbox and can't get rid of it.
This problem occurs when the 'sent items' file/folder is full. God knows how and why it ditermines it's full even though you have a lot of space on the HD) you can do one of the following: delete messges from the sent items folder. It's better to delete all the messages if you don't need them.
Or: you can delete the file that contains the sent items (the file with the dbx format) if you delete it microsoft outlook will make a new blank copy. If you want to know where the file is located hold your mouse on the sent items, right click and then properties, you will see the location. That will do it but if that don't work try deleting messages from the inbox too. I have the same problem as above, also the same software versions, I have done what u suggested deleted some 2000 emails x my sent and and inbox folders along with about 6000 from deleted folder but still the same problem exists. I have been using this combination for a year or two and now suddenly this problem, it drives you nuts, I drag the email from the outbox to drafts to stop it sending more copies, one friend said I sent the same email with photos over 100 times, any further suggestings, please, before I go nuts.