On Tue, 3 Dec 2024, Tim Harman via Postfix-users wrote:
I'm fairly sure this is a Microsoft problem, but I'm asking anyway in case
I'm doing something really dumb.
I've noticed that in the last month I can't receive email from people using
Office 365 hosted email. So, quite a few people. This is what appears in my
mail.log:
Dec 3 11:38:18 mail postfix/smtpd[15735]: lost connection after EHLO from
mail-australiasoutheastazon11020092.outbound.protection.outlook.com[52.101.152.92]
[...]
Here's my main.cf
[...]
# Ask for a Client Cert
smtpd_tls_ask_ccert = yes
[...]
I'm really at a loss. Hoping someone might be able to provide some
hints/suggestions?
My first guess is that Outlook doesn't like being *required* to provide a TLS
client certificate. I have no idea why you (think you) need this, but the
default is OFF, and postfix does really have excellent defaults.
Cheers,
Bernardo
_______________________________________________
Postfix-users mailing list -- postfix-users@postfix.org
To unsubscribe send an email to postfix-users-le...@postfix.org
