On Wed, Jun 09, 2010 at 01:35:03PM -0400, Philippe Chaintreuil wrote:
> 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
> ------------------------------------------------------------------------
Make sure you don't have window-scaling enabled on your MTA, and that
path MTU discovery works through your firewall. If that does not solve it,
see other suggestions in thread.
--
Viktor.
