From: Larry Stone (lstone19stonejongleux.com)
Date: Wed Jun 09 2010 - 16:24:40 CDT

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On Wed, 9 Jun 2010, Olivier MJ Crepin-Leblond wrote:

> Le 09/06/2010 19:35, Philippe Chaintreuil a écrit :
>> One of our users sent a large (about 10MB) e-mail to Yahoo. Yahoo has
>> not been accepting it, they don't give a reason, they just disconnect
>> after getting the whole message:
>>
>> ------------------------------------------------------------------------
>> Jun 9 13:20:50 hobbes postfix/smtp[7398]: 02EB432E022: lost connection
>> with e.mx.mail.yahoo.com[67.195.168.230] while sending end of data --
>> message may be sent more than once
>> ------------------------------------------------------------------------
>>
>> Small messages make it through without a problem, and sending the same
>> message from a Gmail account works.
>>
>> I've tried messing with MTU size (down to 950 from 1500), various
>> sysctl settings, DKIM signing and probably a few things I'm forgetting
>> about: to no avail.
>>
>> The best I can find is this post:
>>
>> http://article.gmane.org/gmane.mail.postfix.user/208435
>>
>> But there's no resolution.
>>
>>
>
> Alas, I never received any follow-up. I sense it could be a time-out due
> to DSL - but I still don't understand why it only does it with Yahoo and
> with no-one else.

Because it's Yahoo. Yahoo's defers mail for all sort of unfathomable
reasons. As Wieste just posted, the OP should jump through Yahoo's hoops
to become white-listed.

-- Larry Stone
    lstone19stonejongleux.com

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