Thank you for the response.
Once I test the Account in Outlook, it just reports that it cannot connect to SMTP server. Login to the incoming server(POP3) is fine.
Here is the mail.log
Sep 11 09:18:14 oriental postfix/smtpd[4743]: 00B9B40E360: client=localhost[127.0.0.1]
Sep 11 09:18:14 oriental postfix/cleanup[4734]: 00B9B40E360: message-id=<20110911131812.988DA40E36B@oriental.all$
Sep 11 09:18:14 oriental postfix/qmgr[3861]: 00B9B40E360: from=<root@oriental.allnetsols.com>, size=12112, nrcpt$
Sep 11 09:18:14 oriental postfix/smtpd[4743]: disconnect from localhost[127.0.0.1]
Sep 11 09:18:14 oriental postfix/local[4744]: 00B9B40E360: to=<administrator@oriental.allnetsols.com>, orig_to=<$
Sep 11 09:18:14 oriental postfix/qmgr[3861]: 00B9B40E360: removed
Sep 11 09:18:14 oriental amavis[4311]: (04311-05) Passed CLEAN, <root@oriental.allnetsols.com> -> <root@oriental$
Sep 11 09:18:14 oriental postfix/smtp[4738]: 988DA40E36B: to=<root@oriental.allnetsols.com>, orig_to=<root>, rel$
Sep 11 09:18:14 oriental postfix/qmgr[3861]: 988DA40E36B: removed
My Incoming mail server is set to pop.mydomain.com
My Outgoing mail server is set to smtp.mydomain.com
(Where mydomain is the actual domain for which I am checking mail)
Im my Outlook settings I have checked "My Outgoing SMTP server requires Authentication".
I am using standard ports 110 and 25 for incoming and outgoing mails.
I even tried to use Thunderbird client, and an alternate ISP to see if that was a problem, but it just didn't work.
What am I doing wrong?