randy@psg.com (Randy Bush) wrote:
@ IN SOA ns.isp.net. netmaster.isp.net. ( 1998100100 86400 3600 604800 345600 ) s/netmaster/hostmaster/ see RFC 2142 or, i think it was piet who recommended being conservative, and do not relying on aliases, rather use a real mailbox name. So that person can safely go on a two-week holiday? I'd rather put in a real hostname and not rely on MX records
Well, the point is, here the domain name points to the mail machine ;-) Does everybody agree that we should recommend an A-RR'd record here?
(Remember that sendmail falls back to A records if it can't find any MX records for a host.)
i think of it the other way, but with the same result. mail will be sent to the (address in rdata of the) A RR unless some one put in an MX RR because the (interface denoted in the) A RR can not accept mail.
Let's put it this way: If MX records are found, mailers try to deliver there. If not, A records are used. So whichever way you put it, if MX records are existent, they will get in your way ;-) Elmi.