Mikolaj Kucharski <[email protected]> wrote: > Hi. > > I've noticed that verification code from WhatsApp send via email is not > arriving to my SMTP server which runs OpenSMTPd on OpenBSD 7.7/amd64. > > This is what I see in /var/log/maillog: > > > smtp connected address=69.171.232.141 > > host=69-171-232-141.mail-mail.facebook.com > > smtp tls ciphers=TLSv1.3:TLS_CHACHA20_POLY1305_SHA256:256 > > smtp bad-input result="500 5.5.1 Invalid command: Pipelining not supported" > > smtp disconnected reason=quit > > Did any of you notice this?
(z)grepping my /var/log/maillog* I don't see anything like this, but on the other hand I've stopped using facebook^W meta services a very long time ago. Anyway, unfortunately this seems a bug on their side as we don't advertise pipelining support because we don't support it. (and to be fair i'm not sure it's a bad thing the lack of pipelining) Cheers, Omar Polo
