Sudden issues sending email to charter.net

I have a dedicated host with managed.com and I've suddenly run into an issue sending mail just to the charter.net domain. I am using redhat 9 and running exim.

This is what I'm getting in my exim_mainlog:

2004-03-15 13:57:38 1B2xDI-0004pN-KA == user1@charter.net <user1@charter.net> R=lookuphost T=remote_smtp defer (-53): retry time not reached for any host
2004-03-15 13:57:38 1B2sks-0002IL-Jb == user1@charter.net <user1@charter.net> R=lookuphost T=remote_smtp defer (-53): retry time not reached for any host

I've tried clearing out the retry database and resending the email in WHM to no avail. I've tried pinging, tracerouting, and nmapping mail.charter.net but I can't get a response or a completed route. I can use dig to resolve the ip address of mail.charter.net, though.

Any ideas or suggestions? After playing around with this for 6 hours, I'm stumped.

 

 

 

 

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