Re: [exim] Problem with HELO

Zbynek Houska wrote:

> Hello,
>
> I wonder what this message means?
>
> Dropped IP-only or IP-starting helo
>
> I've such ones in maillog and don't know what it means.
>
>
> Zbynek
>
>
>

Looks like (probable) ratware tried to connect with 'raw' IP instead of
<domain>.<tld>

See 'domain_literals', generally NOT allowed by default/ most sysadmins'
choices, despite RFC clause.

Bill