Webone blocking port 25??

[Jeremy]

> Not true. You can be assured that webone at least are checking the IP
> range the email comes from and not the name stated in the From:
> header.
> I know this, because my mail goes through their server, but my domain
> is
> not in any way set up by them or administered in any way by them. They
> don't have any knowledge of it.

Complete and utter bullshit.  A week ago I received a message from the 
webone technical support explaining that my mails were being dumped 
because they had an invalid domain in the from line.

You might mean that webone are checking that the name in the From: line 
contains a valid domain name.