I have a domain, say: aaa.com for which I receive mail. Currently I have A records in DNS for aaa.com and mail.aaa.com as well as a MX record for aaa.com. All three of them point to the same IP address which is where postfix is running. There is a political issue with the A record for aaa.com and it "needs" to be changed to elsewhere. I somehow seem to recall that there are some MTAs that do not use the MX records, but only check the A records. Will changing the A record for aaa.com cause the loss of some incoming mail?
-- Doug
