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Old 11-04-2009, 08:19 AM
phoenix phoenix is online now
Zimbra Consultant & Moderator
 
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If you are behind a NAT router (or firewall) then you will need a local DNS server so that Zimbra (Postfix) can resolve it's own IP, if you don't have that then that's the reason mail is being deferred. Check the Split DNS article.
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Bill
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