Re: [exim] SMTP timeouts

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Author: Evgeniy Berdnikov
Date:  
To: exim-users
Subject: Re: [exim] SMTP timeouts
On Sun, Mar 13, 2022 at 08:06:45PM +0000, Mike Tubby via Exim-users wrote:
> 2022-03-13 19:47:53 1nTTGO-0001Jw-Tr H=alt2.gmail-smtp-in.l.google.com
> [2a00:1450:4025:c03::1a]: SMTP timeout after sending data block (476909
> bytes written): Connection timed out

Looks like broken Path MTU discovery. Collect and post traffic dump here.
--
Eugene Berdnikov

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