Error sending mail

[xxdanielxx]

Hey I keep getting this error when sending email I changed the domain and IP for my safety. Below is the error

The message cannot be delivered due to a configuration error on the server. Please contact your Administrator.
<xxxxxxxxxxxxxx.com #5.3.0 smtp;553 5.3.0 nlpi017 - m6IHCtAI031698, DNSBL:521< xxx.xxx.xxx.xxx >_is_blocked.__For_information_see_http://att.net/blocks>

 

[CCT]

http://en.wikipedia.org/wiki/DNSBL

 

[xxdanielxx]

So my Ip is consider as a spam ip?

 

[CCT]

What it sounds like is there is a problem in identifying your IP.

I would contact them, explain the problem. Maybe a complete uninstall-reinstall of the network/internet stuff will clean it out.

Me, when crap gets that bad, I copy off inportant stuff and kill everything else and reload.

Your choice.