Mail server error when sending group emails
"Cannot send message using server smtp.comcast.net. Server response was [TEMPFAIL] destination not valid within DNS."
I can send the email when I limit the group to about 5 people but this is unacceptable. Comcast claims there are no hold ups on their end. Need HELP.
Anyone, anyone?
17 inch 1.25GHZ imac Mac OS X (10.4.10)