When replying to emails they sit in the IMC

[Guest_imported]

This problem is V.strange. One of my clients has a small buisnes server. Sending and recieving emails is not a problem until you try and reply to an email. The reply will then just sit in the outgoing queue. It is as if a DNS entry for the domain can not be found. If you send a new email however there is no problem. Can anybody help?

 

[Hungster]

have this just started or been fine for a while then all of a certain it happened ?

can you tell me what kind of connection are you using dsl or t1 or cable ?

 

[robmicrofix]

It just started happening all of a sudden. (changed log in name by the way.)

 

[Hungster]

could you get your isp to check the reverse dns lookup ?