Viktor Dukhovni via Postfix-users:
> I rather expect the problem was at the TCP layer, perhaps a bug
> similar to:
>
> https://bugzilla.redhat.com/show_bug.cgi?id=191336
>
> https://engineering.skroutz.gr/blog/uncovering-a-24-year-old-bug-in-the-linux-kernel/
> ...
A session hang/drop could explain the timeout.
Alex wrote:
> Aug 22 01:51:36 iceman postfix-199/smtpd[584336]: timeout after BDAT
> (3293244 bytes) from
> > mail-dm6nam04on2133.outbound.protection.outlook.com[40.107.102.133]
...
> I'm seeing quite a large number of those "timeout after BDAT" entries
> in my logs, all of which are from different
> outbound.protection.outlook.com servers.
We don't know if disabling BDAT (chunking) addressed the problem,
or if that just changed the problem it into "timeout after DATA",
or if the change was irrelevant because something was fixed at the
Microsoft side.
Wietse
_______________________________________________
Postfix-users mailing list -- postfix-users@postfix.org
To unsubscribe send an email to postfix-users-le...@postfix.org
