I can contact my host and send/recive e-mails just fine. The only problem I find is the e-mail addresses.
Here it is:
telnet localhost 25
welcome etc. Sendmail 8.8.8 etc.
EXPN, or VRFY root
250 - Administrator<root@localhost>
How can I disable EXPN and VRFY in sendmail. On my ISP they have done another trick(NOT DISABLING) that when you issue:
250 - root@ISP.com
VFRY(or EXPN) user_that_does_not_exist
250 - user_that_does_not_exist@ISP.com
I like this second trick much better ... any help, suggestions??