Hi,
I am able to setup POP3 and SMTP server in win 2003. I created domain
called mydomain.com in POP3 Server and I am also able to send and receive
emails to mydomain.com
But I am not able to send emails to outside like someone@yahoo.com.
I am getting following error:
Thanks in Advance for help.
--Srini
PS:
ERROR:
The message could not be sent because one of the recipients was rejected by
the server. The rejected e-mail address was 'someone@yahoo.com'. Subject
'Test SAI', Account: 'bob', Server: 'xxx.xxx.xxx.xxx', Protocol: SMTP, Server
Response: '550 5.7.1 Unable to relay for someone@yahoo.com', Port: 25,
Secure(SSL): No, Server Error: 550, Error Number: 0x800CCC79

If you are on a dynamic IP network (such as your home network), the
receiving mail server is rejecting your mail because of something known as
dynamic network RBL's. Dynamic network RBL's are used by a few ISP's - AOL
for sure and I think Yahoo as well. To prevent this, relay your outbound
email through your ISP SMTP server. If you do this, you do not have to
create a DNS reverse lookup zone and records.

I think you should configure a "Smart Host" in the properties of the SMTP
virtual server, the smart host being the SMTP server of your ISP.

I am assuming that you are in fact on a dynamic IP. . . you didn't indicate
this in your post.

--
Todd J Heron, MCSE
Windows Server 2003/2000/NT
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