Hello,
On Thu, 17 Feb 2022 10:00:12 +0100 Kai Bojens via Exim-users wrote: > Am 16.02.22 um 08:17 schrieb Christian Balzer via Exim-users: > > > On the MSAs we added IPv6 and noticed this oddity when delivering large > > mails (over 128KB it seems) to google/gmail via v6: > > (…) > > I can confirm this and have also seen this for IPv4 this morning: > Thanks for that, my sanity has been restored. For the record, I have/had very different FW rules for v4, which explains why this did not show on there as well. > H=gmail-smtp-in.l.google.com [2a00:1450:400c:c0b::1a]: SMTP timeout > after sending data block (266346 bytes written): Connection timed out > > H=gmail-smtp-in.l.google.com [142.250.147.26]: SMTP timeout after > sending data block (266133 bytes written): Connection timed out > > This happens on a Debian Bullseye with Exim 4.94.2, nftables and > IPv4&IPv6. Other systems with Ubuntu 18.04, Exim 4.90_1, and IPv4 only > and iptables are not affected. As of now I have no explanation on our > side for this behavior. > Can you also confirm that small mails, sessions shorter than 2 seconds have no problem? Christian > -- > ## List details at https://lists.exim.org/mailman/listinfo/exim-users > ## Exim details at http://www.exim.org/ > ## Please use the Wiki with this list - http://wiki.exim.org/ -- Christian Balzer Network/Systems Engineer ch...@gol.com Rakuten Communications -- ## List details at https://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
