Exchange 2010 Duplicate messages

Just started having a problem where I am occasionally getting duplicate message in mailboxes.  We use GFI mail essentials and it shows a single message, yet at the mailbox it receives 2 and when I go in the tracking log it shows 2 with the same message id.   They are always the exact same time.   Any help would be appreciated
tcolonnaAsked:
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AmitIT ArchitectCommented:
Can you bypass GFI What service pack and RU you are running?
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tcolonnaAuthor Commented:
version 14.1 build 218.15

14.01.0438.000
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AmitIT ArchitectCommented:
You are running SP1, which is outdated and out of support. I highly recommend you to upgrade to SP3 with RU10 or 11. You can follow my article.

http://www.experts-exchange.com/articles/10389/Steps-for-Upgrading-Exchange-2010-SP1-or-SP2-to-SP3-with-Latest-Rollup.html

There are tons of fixes done by MS between SP1 and SP3. Whatever I am reading, SP1 was known for duplicate message issue.
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tcolonnaAuthor Commented:
If I am running a single exchange 2010 server can I just run the SP or do I need to go through all the steps?
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AmitIT ArchitectCommented:
You can directly run service pack. Follow this:
Take full exchange server backup
Now run download sp3.
Run sp3 with an account which is a member of necessary group I mentioned in my article.
Finally run the roll up restart your server.

Let me know if any more query.
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tcolonnaAuthor Commented:
Thanks I will give it a go when I have a downtime window.
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