Tek-Tips is the largest IT community on the Internet today!
Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!
-
Congratulations SkipVought on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!
421 Service Not Available
- Thread starter buztwet
- Start date
Your connection was dropped after the handshake "EHLO", "MAIL TO:" or "RCPT:"
From observation, Aol tends to shift their internal DNS numbers quite a bit, or down a lot of mail servers from time to time. Your own DNS servers may not have cache up in time. This causes your mail to hit the wrong Aol mail server box, and get the 421 code.
There's not much you can do about it. You can try using AOL's DNS numbers for a try. Or someone out there find a way around this.
From observation, Aol tends to shift their internal DNS numbers quite a bit, or down a lot of mail servers from time to time. Your own DNS servers may not have cache up in time. This causes your mail to hit the wrong Aol mail server box, and get the 421 code.
There's not much you can do about it. You can try using AOL's DNS numbers for a try. Or someone out there find a way around this.
- Thread starter
- #3
Fully check your reverse DNS info right here
after you have a talk with your ISP.
after you have a talk with your ISP.
That is your problem you need reverse DNS. You can go to this AOL link and test how their servers see you.
- Status
Similar threads
- Locked
- Question
- Locked
- Question
- Locked
- Question
