Re: [exim] HELO verification

Quoting Jakob Hirsch:

> condition = ${if !match {$sender_helo_name}
> {\N^([a-z0-9][-_a-z0-9]*\.)+[a-z]{2,6}$\N}}

This should have been case-insensitive:

condition = ${if !match {$sender_helo_name}
{\N^(?i)([a-z0-9][-_a-z0-9]*\.)+[a-z]{2,6}$\N}}

I have it now running with warn/log_message, but there was no host
triggering it yet, so I guess it's really not useful.