We recently switched ISPs and in doing so got assigned a different static IP address. That's when the problems began. Some emails go through without a hitch. Gmail for example delivers normally. There are others, however, that get hung up in the queue displaying errors like:
"The connection was dropped by the remote host."
"The remote server did not respond to a connection attempt."
"Unable to bind to the destination server in DNS."
Also, if I send the email on my phone using the same email address (but a different SMTP server, AT&T's) then it goes through fine as well.
I used telnet to check port 25 and the connection and it works just fine. And like I mentioned, some mail goes through fine, but certain domains refuse to work properly. I have contacted Frontier (our ISP) and they said our Reverse Lookup was set up, but I'm not convinced as this looks like that sort of issue. Any suggestions?
November 15, 2012 8:55 PM
November 16, 2012 1:33 PM