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POP Problems

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Hi

One of my sites POP's email from the head office site. I am using Exchange 2003 and Windows Server 2003 at head office. While at the other site I am using Exchange 2003 and SBS 2003.

Emails were functioning fine. The last week three of my mailboxes started giving problems i.e. the users can send /receive mails internally however, they can only send mail externally i.e they are not receiving external email (the mail from the head office server is not being pulled into the site server).

I have checked mailbox quotas etc., I have deleted old mails, restarted both servers, restarted all the services, reset all the basic settings, however, still no resolution.

Any suggestions as to what I should be looking for?

Thanks.

Wednesday, August 13, 2008 8:55 AM

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Hi,

The following common factors may lead to 'unable to receive external email' problem. The MX record we registered on Internet is incorrect; Our email address is listed in 'email address block list'; The inbound SMTP port is blocked by firewall and not available. Typically, we can use telnet to test SMTP conversation as the article below mentioned.

How to Use Telnet to Test SMTP Communication

http://technet.microsoft.com/en-us/library/aa995718.aspx

However, for more accurate assistance on Exchange connection problem, please post to our Exchange queue:

Transport:

http://forums.microsoft.com/TechNet/ShowForum.aspx?ForumID=844&SiteID=17
- Marked as answer by Morgan Che [MSFT] Friday, August 15, 2008 9:44 AM
Thursday, August 14, 2008 10:10 AM