FYI, I got rawlog working and it shows the same break in the raw logs as in the broken headers. Below is a snippet from the rawlog (names and other identifiers redacted). The offending sequence is always in the References headers section, and you can see the line breaks there that show this. So it sounds like this can't be an issue with Dovecot, am I right? I wish I could get this figured out. Such a headache.... *sigh*

Thanks!

======================================================================== poht IDLE DONE slwf LIST "" "INBOX" 36oi LSUB "" "*" 2by6 IDLE DONE p5dx SELECT "shared.IT" uz85 FETCH 6 (UID) f925 UID FETCH 1:51 (UID FLAGS) kd5i IDLE DONE y9u7 UID FETCH 51 (UID FLAGS BODY.PEEK[]) qoyj IDLE DONE rfxa UID STORE 51 +FLAGS (\Deleted \Seen) h8ly IDLE DONE fe4g EXPUNGE fauq IDLE DONE 1wa2 UID FETCH 49 (UID FLAGS BODY.PEEK[]) 6403 IDLE DONE luq8 UID FETCH 50 (UID FLAGS BODY.PEEK[]) 700u IDLE DONE jl6b APPEND "shared.IT" (\Seen \Answered) " 2-Nov-2010 11:46:19 -0700" {12898938} From: "User" User@xxx.com To: "zzz, Roy", "zzz, Mandred", "zzz, Jerry" Cc: "zzz, Johan", "Bob zzz" bobw@xxx.com, "Brandon zzz" brandonh@xxx.com, "Mark zzz" MarkBe@xxx.com, "Cassie zzz" CassieE@xxx.com, "Erin zzz" erinb@xxx.com References: B3457C1920D7A2438CCC19EF2A527293372B11@yyy027.yyy.local B3457C1920D7A2438CCC19EF2A527293372D9A@yyy027.yyy.local B3457C1920D7A2438CCC19EF2A5272933A2C3D@yyy027.yyy.local B3457C1920D7A2438CCC19EF2A5272933A310E@yyy027.yyy.local B3457C1920D7A2438CCC19EF2A5272933A3683@yyy027.yyy.local B3457C1920D7A2438CCC19EF2A5272933A3B97@yyy027.yyy.local B3457C1920D7A2438CCC19EF2A5272933D103B@yyy027.yyy.local B3457C1920D7A2438CCC19EF2A5272933D192F@yyy027.yyy.local B3457C1920D7A2438CCC19EF2A5272933D1B12@yyy027.yyy.local B3457C1920D7A2438CCC19EF2A5272933FD341@yyy027.yyy.local B3457C1920D7A2438CCC19EF2A5272933FD8F8@yyy027.yyy.local B3457C1920D7A2438CCC19EF2A5272933FD9A0@yyy027.yyy.local B3457C1920D7A2438CCC19EF2A5272933FDFDD@yyy027.yyy.local B3457C1920D7A2438CCC19EF2A5272934C8927@yyy027.yyy.local B3457C1920D7A2438CCC19EF2A5272934C8B46@yyy027.yyy.local B3457C1920D7A2438CCC19EF2A5272934C8D76@yyy027.yyy.local B3457C1920D7A2438CCC19EF2A5272934C8D7A@yyy027.yyy.local

D7A2438CCC19EF2A5272934C8D95@yyy027.yyy.local> B3457C1920D7A2438CCC19EF2A5272934C8DB6@yyy027.yyy.local B3457C1920D7A2438CCC19EF2A5272934C8F0D@yyy027.yyy.local B3457C1920D7A2438CCC19EF2A5272935008B5@yyy027.yyy.local B3457C1920D7A2438CCC19EF2A527293500C27@yyy027.yyy.local B3457C1920D7A2438CCC19EF2A5272935011BC@yyy027.yyy.local B3457C1920D7A2438CCC19EF2A527293525B1D@yyy027.yyy.local B3457C1920D7A2438CCC19EF2A527293525D81@yyy027.yyy.local B3457C1920D7A2438CCC19EF2A527293526139@yyy027.yyy.local B3457C1920D7A2438CCC19EF2A527293526416@yyy027.yyy.local B3457C1920D7A2438CCC19EF2A5272935524A6@yyy027.yyy.local B3457C1920D7A2438CCC19EF2A5272935524C9@yyy027.yyy.local B3457C1920D7A2438CCC19EF2A527293589E1C@yyy027.yyy.local B3457C1920D7A2438CCC19EF2A5272935BF6A9@yyy027.yyy.local B3457C1920D7A2438CCC19EF2A5272935E7414@yyy027.yyy.local B3457C1920D7A2438CCC19EF2A5272935E75E2@yyy027.yyy.local B3457C1920D7A2438CCC19EF2A5272935E75E8@yyy027.yyy.local B3457C1920D7A2438CCC19EF2A5272935E800E@yyy027.yyy.local Subject: RE: Handrails Rev A0 Date: Mon, 1 Nov 2010 08:48:46 -0700 Message-ID: B3457C1920D7A2438CCC19EF2A52729364DDF9@yyy027.yyy.local MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_NextPart_000_0008_01CB7B6A.94700430" X-Mailer: Microsoft Office Outlook 12.0 Thread-Index: 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 Content-Language: en-us X-OlkEid: 3AC4FD25109011935C76A940AD2D228DF22261EA content-class: urn:content-classes:message

On Wed, Nov 3, 2010 at 1:32 PM, Timo Sirainen tss@iki.fi wrote:

On 3.11.2010, at 19.53, Scott Goodwin wrote:

...

Emails to one specific user in my organization (let's call him Roy@Ocean.org) is having his emails mangled when dragging certain items from his Exchange mailbox to the IMAP account.

Is the client using SSL? If not, looking at the actual IMAP traffic would be helpful. Best would be to look it at the Outlook machine, but I don't know what Windows tools exist for that. You could also enable Dovecot's rawlog, which works also with SSL enabled. If in the output you see the same corruption then it's caused by Outlook (or some antivirus/firewall in the middle). http://wiki.dovecot.org/Debugging/Rawlog