Re: [Exim] 451-Invalid HELO

Giuliano Gavazzi wrote:

| Your machine (what's the point in obscuring it since we can get it
| anyway) greets with the following:
|
| Received: from cpc1-cmbg2-6-0-cust180.cmbg.cable.ntl.com
| ([80.4.4.180]:43079 helo=marvin)
|
| so you are on a dynamic address (but this is not the issue here) and
| helo with an unqualified "marvin". This is against RFCs as the helo
| argument should be the FQDN of the sending host, in this case
| something that resolves to 80.4.4.180.
| Even after you fix this, you will have all sort of problems with
| servers rejecting mail from dynamic IPs as yours. If you want to
| avoid these problems use your provider smtp server to relay outgoing
| mail.

which, for info, is:

smtp.ntlworld.com

--
Chris Edwards, Glasgow University Computing Service