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