In addition, please also verify that each domain for which you want to receive inbound Internet mail is listed on a recipient policy and Exchange is authoritative for that domain, or, if non-authoritative, Exchange has a connector configured for the domain and allows relaying to it. And here is another article for reference. Hope helps.Noya Lau TechNet Community Support

In addition, please also verify that each domain for which you want to receive inbound Internet mail is listed on a recipient policy and Exchange is authoritative for that domain, or, if non-authoritative, Exchange has a connector configured for the domain and allows relaying to it. And here is another article for reference. Hope helps.Noya Lau TechNet Community Support

Exchange server 2010 not recieve mail from internet.. outgoing both internal and internet mail is working fine only problem is incoming mails. also we have watchguard firwall configure. please sugest.. we have dc win2008 ent +exchange 2010 +watchguad firewall.

Hi, Have you created a receive connector to accept anonymous connections or did you modify the default connector? http://technet.microsoft.com/en-us/library/bb738138.aspx Is TCP port 25 (SMTP) open from the internet to the exchange server in the firewall? You have a MX record pointing to the external IP address of the firewall? Any antivirus application installed on the exchange server that could block SMTP traffic? Leif