Changes

Add domains, hostnames, or perl regexp patterns to the <badhelo> config file; one per line.

Add domains, hostnames, or perl regexp patterns to the <badhelo> config file; one per line.

{{Note box|You cannot block HELO IP addresses with this plugin. It is not designed to do that}}

{{Note box|You cannot block HELO IP addresses with this plugin. It is not designed to do that. Please look at other methods such as direct IP blocking via the firewall, or contribs like Fail2ban, GeoIP, xt_tables}}

https://github.com/smtpd/qpsmtpd/blob/master/plugins/helo

https://github.com/smtpd/qpsmtpd/blob/master/plugins/helo