What do I need to change in main or master to 55x ALL MAIL for a while?
I've changed my MX records to point to a different host and I'll probably retask this one later, but, at the moment it is still set up to deliver mail that arrives with valid usernames and with the new MX records the only mail coming in will be spam sent direct using cached records.
I want to have it reject EVERYTHING for a while before I change the IP and retask it but I don't want to completely wipe out the current config, hopefully just add a directive that can be removed later. Being able to add text to the effect that our MX has changed would be nice so if any legitimate emails do come through there's a chance that a human will read the notice.
Thanks, Gerald
