Question : SBS 2008 inbound emails - changing from POP3 connector to SMTP connector

I'd like to move our inbound mail on an SBS 2008 server to come in directly to an SMTP connector away from the POP3 connector we've been using. I need advice on best way to tackle it.

I have changed our MXRecords so that remote.ourdomain.co.uk is our primary records and mail.ourpop3mailserver.com is the secondary record. Remote.ourdomain.co.uk uses a GoDaddy certificate, which is used for our intranet, sending out emails and allowing our iPhones connect to Exchange. I did not want to mess up the settings for this certificate by running the wizard, Microsoft updates manages to do this without our help.

Thanks for any ideas.

Answer : SBS 2008 inbound emails - changing from POP3 connector to SMTP connector

Awesome. We were all going in the same direction. My next step was to troubleshoot the SMTP commands in use. You just beat me to it with going to the technote.

To sum up the issue here was really that the port forwarding in the router was, for some reason, not working. Removing that and putting it into the router again started it working again. The rest of it was just prooving that SMTP on your server was working so we could go back to the port forwarding. Along the way you learnt a lot about SMTP and the way exchange recieve connectors work.

Don't forget to do an open relay check. and make sure that your secondary MX is set to Store and Forward, not deliver to the legacy mailboxes. Safe to run without a secondary MX for a while if it takes a bit to sort this out.

Andy