Here's the header part of the 2 mails I receive when they are duplicate. From
what I can understand, it seems that there's only one connection made to
Postfix, but Postfix send the mail to LMTP, but made a new copy and send it to
itself, which is then sent to LMTP too.
Does it means something else?
Daniel
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Message #1
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Received: from localhost (homer.mydomain.com [10.0.32.13]) by
mail.mydomain.com (Postfix) with ESMTP id 561804498EF
for ; Sat, 21 Feb 2009 13:37:41 -0500 (EST)
Received: from mail.mydomain.com ([10.0.32.13]) by localhost
(homer.mydomain.com [10.0.32.13]) (amavisd-new, port 10024)
with LMTP id NHSD4caH1jdE for ;
Sat, 21 Feb 2009 13:37:38 -0500 (EST)
Received: from [10.0.0.120] (ip-xxx.xxx.xxx.xxx.dsl-xxx.xxx [xxx.xxx.xxx.xxx])
by mail.mydomain.com (Postfix) with ESMTP id 0421137074D
for ; Sat, 21 Feb 2009 13:37:37 -0500 (EST)
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Message #2
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Received: from localhost (homer.mydomain.com [10.0.32.13]) by
mail.mydomain.com (Postfix) with ESMTP id 79CF64498EC
for ; Sat, 21 Feb 2009 13:37:41 -0500 (EST)
Received: from mail.mydomain.com ([10.0.32.13]) by localhost
(homer.mydomain.com [10.0.32.13]) (amavisd-new, port 10024)
with LMTP id QgPsqaEw4tIc for ;
Sat, 21 Feb 2009 13:37:38 -0500 (EST)
by mail.mydomain.com (Postfix, from userid 207) id 314664498FC; Sat, 21 Feb
2009 13:37:38 -0500 (EST)