Hi!
Zimbra delivers its emails using amavis as antivirus/antispam. This service includes some lines (lie pasted bellow) in the email header. In some forums, users tells that "Received: from localhost (localhost [127.0.0.1])" is not a problem to antispam system BUT IT IS. Testing email against an exchange server of a friend, the exchange filter said "Message rejected due to content restrictions" and this content is, excactly the "Received: from localhost (localhost [127.0.0.1])".
I know tha many users will tell that "Received: from localhost (localhost [127.0.0.1])" is not a problem but I want to know if I can remove this header parts or change it to the real hostname/IP.;
Thanks!



Received: from localhost (localhost [127.0.0.1])
by dino.solucoesideais.com.br (Postfix) with ESMTP id C08353A021CE
for <andretapxure@gmail.com>; Tue, 25 Feb 2014 13:47:03 -0300 (BRT)
Received: from dino.solucoesideais.com.br ([127.0.0.1])
by localhost (dino.solucoesideais.com.br [127.0.0.1]) (amavisd-new, port 10032)
with ESMTP id wIaKq5IGzP_I for <andretapxure@gmail.com>;
Tue, 25 Feb 2014 13:47:03 -0300 (BRT)
Received: from localhost (localhost [127.0.0.1])
by dino.solucoesideais.com.br (Postfix) with ESMTP id 1C4933A021E0
for <andretapxure@gmail.com>; Tue, 25 Feb 2014 13:47:03 -0300 (BRT)