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POP & Exchange Server 2010
Message from firstname.lastname@example.org
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We’ve started migrating our mailboxes from Exchange 2007 to 2010. We’ve started to notice that users that have been migrated to 2010 and are using POP are having issues in receiving attachments as they come in as winmail.dat, regardless of what client the sender is using. We’ve seen this happen on multiple clients and OS’s (Thunderbird, Eudora and Mac Mail, thus far and Mac OSX and Windows).
Our mail system is setup where our edge servers are Sendmail’s SMTP and incoming server is Exchange.
Exchange server is up to date on it’s patch level.
If a POP user checks OWA, the attachment is displayed correctly. If we convert the profile to either IMAP or full Exchange (RPC over HTTP) on the same client, the attachments are displayed and come in just fine. Creating another POP profile on the same client does not help.
But, if we configure a POP client, Mac Mail for instance, on a stock OSX (10.6.8) – same OS version as an effected user – where it just has anti-virus, the same mailbox profile/settings work fine, but same profile on an affected system fails.
The same mailbox that was on 2007 prior to it’s migration to 2010 had no issues with attachments via POP.
Has anyone experienced this or heard of this? Does anyone know if Microsoft changed how the POP protocol is read/handled by Exchange 2010? Even thought it doesn’t seem like it’s server specific related as we did get it to work on a stock OS.
Assistant Director for Help Desk & AV / Media
The Rockefeller University
1230 York Avenue
IT will never ask you for your passphrase. If you receive e-mail asking for your passphrase, NEVER give it out.