Cannot get mail to a particular domain (driving me NUTS!)
Hello,
Can anyone possibly help with this problem???
Users on my machine cannot send e-mail to any user on the domain 'llrcpa.com'. We have been working with this problem for 3 weeks and can't find out the cause. This domain is an important destination for us, and we send email to this domain almost every day.
Here is what we've found.
- Every server I can find CAN send mail to this domain, except mine. The admin of the other server insists that they aren't blocking or anything.
- I'm not on any blackholes, etc.
- For a while, I would send a message and it would sit in the queue, with a ''couldn't connect' problem. For the last 2 days, the emails go right through, but then get returned with an 'undelierable mail' message (generic).
- I can ping the other mail server, but I can't telnet to it on port 25. On other servers, I CAN telnet to it on port 25.
Well, thats it! I can't figure it out and my ISP is not very helpful. Both isp's blame it on the other, which doesn't help me very much!
Any help appreciated, thanks!