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?
OpenBSD 7.7 (GENERIC.MP) #0: Sun May 4 11:23:50 MDT 2025
r...@syspatch-77-amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
--
Regards,
Mikolaj
