Outlook 2011 for Mac delayed downloading from server

Posted on 2011-10-26
Last Modified: 2012-05-12
I have a one user who is experiencing this issue. His Outlook for Mac 2011 will intermittently not download emails that have been delivered to Exchange (Exchange 2010).  Yesterday I sent him 3 test emails number sequentially - His outlook downloaded number 1 and number 3 but did not download number 2.  He had received all three on his Android device and they were also there when you checked his inbox with OWA, but no amount of hitting Send/Receive would get Outlook to download number 2.   After about 15 minutes, number 2 finally showed up.

I launched Outlook holding down the option key and rebuilt his Outlook database, then had him use it for the rest of the day - the problem continues.  Has anyone seen this or have other suggestions for rectifying this problem?

Thanks, Brian
Question by:milehijones

    Expert Comment

    Yes. I have the same exact problem.  The other strings in the forum say to delete all messages over 10M.  I deleted everything over 5M and still I have the same problem.  I have 4 random emails that continuously download and never appear in my inbox.  This issue interferes with the delivery of other email.  At times it will drop 10 or 15 emails in my inbox at once that are already in OWA and already on my phone or I will get 3 out of 5 emails and then randomly an hour or three hours or a day later the mysterious email will show up.  Still, the four emails that are stuck remain and are stuck.  They are no longer visible in OWA or Outlook on a PC or via mail on my phone (because I deleted them).  There are no attachments over 5M on the server in my profile.  I did see one article (which I can no longer find) that mentioned going to Exchange 2010 SP2 and doing some Microsoft stuff on the server (I'm not a MSFT guy), so I was going to have someone else do it.  I can't find that link to save my life though.  Stuck and frustrated....

    LVL 1

    Accepted Solution

    Paul - I found this after lots of looking and research:

    In summary, Outlook for Mac 2011 uses EWS (Exchange Web Services) to communicate with the Exchange 2010 server.  EWS apparently will disconnect TCP connections without any error message and the behavior you seen exhibited with Outlook for Mac is it will simply not get any email for random periods of time - even pounding the send / receive button won't get it to pickup emails that are waiting for it :-)  

    After applying that update rollup 6 patch for SP1, the problem with my Outlook for Mac client(s) stopped.  They get mail just as quickly now as Outlook for Windows users.  Let me know if it helps you!

    Best regards,
    LVL 1

    Author Closing Comment

    I discovered the answer to my own question after doing more research.

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