[ILUG] SMTP issue: Mail delivery failed: returning message to sender

[Dave Neary]

Hi all,

I'm a cable user with wanadoo.fr, and up until recently I had a
grand little set-up. I send mail to my local smtp server (exim),
which then forwards it on to smtp.wanadoo.fr. I called my local
machine "bolsh.wanadoo.fr", and it's basically just a local name
(it resolves to 127.0.0.1). Up until recently, all was fine.
Sometime yesterday, I started getting messages like the one
attached below... is it my fault, or has something on he server
side changed, and how can I fix it? Not knowing much about smtp,
I'm not really in a position to diagnose the problem...

Thanks for any help ye can give,
Dave.

=============================================
This message was created automatically by mail delivery software (Exim).

A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:

  ilug at linux.ie
    SMTP error from remote mailer after MAIL FROM:<dave at bolsh.wanadoo.fr>
+SIZE=3061:
    host smtp.wanadoo.fr [193.252.19.219]: 552 <dave at bolsh.wanadoo.fr> unable to
+verify address
          
------ This is a copy of the message, including all the headers. ------
================message snipped==============

-- 
"This is the sort of pedantry up with which I will not put"
-- Winston Churchill