I have a user who keeps getting a delivery failure report that say:
450 username@xxx.com: Sender address rejected: Domain not found
Not sure where to start looking, is it on my end or outside?
Thanks in advanced for your help.
BM
I have a user who keeps getting a delivery failure report that say:
450 username@xxx.com: Sender address rejected: Domain not found
Not sure where to start looking, is it on my end or outside?
Thanks in advanced for your help.
BM