Re: [Exim] ECLEAR_SERVER message

Dave Restall - System Administrator wrote:
> 2003-06-20 13:50:37 no host name found for IP address 213.1.253.57
> 2003-06-20 13:50:38 rejected HELO from [213.1.253.57]: syntactically
> invalid argument(s): ECLEAR_SERVER
>
_ is not a valid character to send as a domain name in an HELO. The
person running the server at the other end is probably running a
Microsoft server (they use underscores when they shouldn't). You can
accept the mail by setting
helo_allow_chars = _
in the main part of your exim config.
John