On 2023-08-22 at 09:32:11 UTC-0400 (Tue, 22 Aug 2023 15:32:11 +0200)
Matus UHLAR - fantomas via Postfix-users
is rumored to have said:
so far all SMTP RFCs have specified that hostname specified in HELO
needs NOT to match the result of client IP's hostname lookup.
I think there's a problem wi
On 22.08.23 18:43, Peter H via Postfix-users wrote:
When my mailserver talks to other MTA, it certainly will issue a HELO
command.
Saying the hostname after HELO is: mail.host.com, which points to an IP.
But this IP's PTR doesn't point back to the hostname above.
That's saying, the IP does ha
Peter H via Postfix-users:
> Hello,
>
> When my mailserver talks to other MTA, it certainly will issue a HELO
> command.
>
> Saying the hostname after HELO is: mail.host.com, which points to an IP.
>
> But this IP's PTR doesn't point back to the hostname above.
A Postfix SMTP server will set t
