Re: Email being rejected

Hi Colin, initially I think it is their end. They must have some spam system
blocking you.


"Colin" <Colin@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:A9D9FE16-80C7-4AD1-8CFF-FA2039191DA9@xxxxxxxxxxxxxxxx
Hi all,

One of my client's SBS 2003 Standard R2 (no SP2) boxes started rejecting
mail 3 days ago. The following error was sent back to the guys trying to
send
mail to us:

Your message did not reach some or all of the intended recipients.
Subject: Auction List
Sent: 30/05/2008 15:02
The following recipient(s) could not be reached:
anna@xxxxxxxxxxxxx on 30/05/2008 15:03
There was a SMTP communication problem with the recipient's email server.
Please contact your system administrator.
<externalcompany.local #5.5.0 smtp;571 Delivery not authorized, message
refused>

email seems to be working fine now but nothing has changed. Anyone know
why
this problem may have occurred ?

Regards Colin.


.

Loading