North American Network Operators Group

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Re: An A record is an MX record and is a missing MX....

  • From: Randy Bush
  • Date: Thu Apr 03 21:20:45 2003

> MX records are only required if you want to have more than one mail
> exchange servers to serve your domain, e.g. if you want to have a
> secondary mail server as a relay if the primary server goes down.

actually, i suspect the more common use is that one has a collector
server for a lot of local infrastructure, as in

   @      A     666.42.7.11
   foo	  A	666.42.7.12
	  MX  0 @
   bar	  A	666.42.7.13
	  MX  0 @

randy