We are changing the static IP of our network tonight. I want to make sure I have all the bases covered.
I'll change the public IP in the hardware firewall
Change the MX, a, etc., spf records in the DNS hosted by godaddy.
Rerun CEICW? on the SBS box?
Is there anything that we should have with the ISP for reverse DNS (they have to set up reverse DNS, right?) for mail to be sent from our exchange server reliably?