On 19/09/19 8:43 PM, Nicolas Kovacs wrote:
smtpd_helo_restrictions = reject_unknown_helo_hostname
...
One single user has a MacBook Air with Thunderbird on Mac OS
Mojave, and her outgoing mails are rejected with the following error
message in /var/log/maillog on the server:
Sep 16 14:22:32
Hi,
the main problem is that the MacBook obviously presents an illegal host name to
the mail server, which in turn rejects accepting mail to be submitted from it
because of 'reject_unknown_helo_hostname'.
With your 'smtpd_helo_restrictions', Postfix handles submissions from clients
as it
Nicolas Kovacs writes:
> Hi,
>
> I'm running our local school's mail server on CentOS 7, Postfix and
> Dovecot. We get quite a lot of spam, so I have the following sender
> restrictions in my /etc/postfix/main.cf:
>
> --8<--
> # Restrictions
Hi,
I'm running our local school's mail server on CentOS 7, Postfix and
Dovecot. We get quite a lot of spam, so I have the following sender
restrictions in my /etc/postfix/main.cf:
--8<--
# Restrictions SMTP
smtpd_helo_restrictions =
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