smtpd_helo_required = yes
smtpd_recipient_restrictions =
......
reject_invalid_helo_hostname
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--
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> -----Ursprüngliche Nachricht-----
> Von: [email protected] [mailto:owner-postfix-
> [email protected]] Im Auftrag von L. D. James
> Gesendet: Mittwoch, 23. Dezember 2015 09:39
> An: [email protected]
> Betreff: How to Block EHLO/HELO that has IP Only
>
> I have many log entries where there are "helo=[1.2.3.4]" entries with no
> domain name. It has an IP address only. Each of these occasions are
> unwanted spam messages.
>
> Can some one specify a policy restriction that will block these messages.
>
> An example from the log is:
>
> Dec 22 16:00:52 hera5 policyd-spf[9883]: None; identity=mailfrom;
> client-ip=75.211.27.210; helo=[63.205.88.41];
> [email protected];
> [email protected]
>
> Thanks in advance for any suggestions on this.
>
> -- L. James
>
> --
> L. D. James
> [email protected]
> www.apollo3.com/~ljames
