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SSL Filtering breaks Outlook 2010 and Exchange sometimes

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See the attached image.  This is a very recent issue, but I had 6 users across 6 different locations all randomly have no access to send/receive email.  I could not download their mailboxes, folders would not synchronize.  The problem was ESET.


Key words for Google to find this post in hopes it helps someone else:


OST PST download fail cached exchange 2010 outlook 2010 disconnected from server unable to send email




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Does switching to pre-release updates make a difference? In Internet protection module we've added a workaround for troublesome communication where the server provides incorrect content-length information. What protocol do you use for downloading email?

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