Exchange 2003 can't send to Groupwise

We have a client (JI) that has recently changed to a different software vendor. This vendor uses Groupwise on their end for email. JI can receive any email that comes from the vendor but can not send to them... mail just sits in the Queue and retries. JI is running Exchange 2003 on a Win2000 box

RE: Exchange 2003 can't send to Groupwise

08, 2004 5:07 AM To: Exchange Discussions Subject: Exchange 2003 can't send to Groupwise We have a client (JI) that has recently changed to a different software vendor. This vendor uses Groupwise on their end for email. JI can receive any email that comes from the vendor but can not send to them