I have recently set up a DNS Server, and I configured my domain on that server, that is going to work also as a Web Server and E-mail Server. I receive e-mails from private domains, and if you try to go to www.mydomain.com you can access the website with no problems. Now, since the day I put mydomain.com to work I have never received e-mails from yahoo, hotmail or Terra, and the messages come back to those accounts with information like:
This is an automatically generated Delivery Status Notification.
THIS IS A WARNING MESSAGE ONLY.
YOU DO NOT NEED TO RESEND YOUR MESSAGE.
Delivery to the following recipients has been delayed.
Hi. This is the mailer-daemon. I'm afraid I wasn't able to
deliver your message to the following addresses. This is a
permanent error; I've given up. Sorry it didn't work out.
Sorry, I wasn't able to establish an SMTP connection. (#4.4.1)
I'm not going to try again; this message has been in the queue too long.
So, I don't know exactly what's going on, but I suspect is has something to do with "black listing" of my IP address....
What could be happenning????
Thanks for any help.