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albertix 12th November 2008 19:01

email problems
Hi every body.

I hava a problem with email on ispConfig 2 (Postfix), the problem is that i can recive email with attach more that 9MB, just dont recive it.

People say me, i send email, but it dont arraive.

I see mail log, but don found nothing.

Thanks a lot for your help.

albertix 12th November 2008 19:34

Message that i receive
Technical details of permanent failure:
Google tried to deliver your message, but it was rejected by the recipient domain. We recommend contacting the other email provider for further information about the cause of this error. The error that the other server returned was: 552 552 5.3.4 Error: message file too big (state 18).

Received: by with SMTP id a6mr3218051far.53.1226510051397;
Wed, 12 Nov 2008 09:14:11 -0800 (PST)
Received: by with HTTP; Wed, 12 Nov 2008 09:14:07 -0800 (PST)
Message-ID: <c0e805840811120914m12599551y8b7d03d2a0abca58@mail>
Date: Wed, 12 Nov 2008 11:14:07 -0600
From: "Luis Alberto Arenas Salinas" <>
Subject: Prueba de envio de correo
MIME-Version: 1.0
Content-Type: multipart/mixed;

Content-Type: multipart/alternative;

Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

Prueba de correo

_X_ 12th November 2008 19:39

Found this:

message_size_limit (default: 10240000)
The maximal size in bytes of a message, including envelope information.
Note: be careful when making changes. Excessively small values will result in the loss of non-delivery notifications, when a bounce message size exceeds the local or remote MTA's message size limit.

mailbox_size_limit (default: 51200000)
The maximal size of any local(8) individual mailbox or maildir file, or zero (no limit). In fact, this limits the size of any file that is written to upon local delivery, including files written by external commands that are executed by the local(8) delivery agent.
This limit must not be smaller than the message size limit.

_X_ 12th November 2008 19:40

dont forget to restart postfix

/etc/init.d/postfix restart

_X_ 12th November 2008 19:41

all this is changed in /etc/postfix/

albertix 12th November 2008 19:59

I Did it, but not resolve the problem.
Hi X, i did it, but the problem not resolved.

do you knok a other solution.

_X_ 12th November 2008 20:24

you can try to modify:


where memory_limit and post_max_size must be larger than upload_max_filesize

this can help having larger attachment size in web mail but i dont know if that has any effect on postfix.

Numerizen 24th May 2012 10:33

Thanks for the info in this thread. 10Mo is definitely not enough these days.

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