How to allow Unsolicited Bulk Email !

Posted on 2004-11-15
Medium Priority
Last Modified: 2010-03-04
Hello ,

i have a web server , and i use Bulk Email Program (World Cast) to send emails to my customers and members of my site (they are over 45000 ) but when i use my site's SMTP Server the sending stop after 3000 message (or around)

the following message appear :


550-Host XXXX.com [] is not permitted

550-to relay through server1.MySite.com.

550-Perhaps you have not logged into the pop/imap server in the last 30 minutes.

550-You may also have been rejected because your ip address

550-does not have a reverse DNS entry.

550 relaying to <Email@Email.com> prohibited by administrator


any one can help !

Question by:BinaryTree
1 Comment

Accepted Solution

mrielf earned 1500 total points
ID: 12591604
It's your server or ISP hosts your page?

If it's your, then check your MTA config (what kind of MTA you using?) and search for "relay hosts" setting.

Try to setup your external IP address to "accepted host list" too not only


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