On 04/11/11 14:02, [email protected] wrote: > Hi Michael > > On Mon, 11 Apr 2011 13:41 -0400, "Michael Orlitzky" > <[email protected]> wrote: >> On 04/11/11 12:49, [email protected] wrote: >>> >>> I learned that we really should have both a primary and a backup MX >>> assigned, and that they should be different IPs. >>> >> >> I'm going question this wisdom with the hope that it might save you some >> pain. Why would it be better to have two MXes, especially if they're the >> same box? > > There's no wisdom here, just what I've been told -- use a minimum of 2. > > All of the examples that I see have at least two MX records. > > One of the fellas at the user group who told us about PostFix wast > talking about best -practices and put up a slide about this > > Symantec Brightmail Gateway (SBG) - Best Practices: New Deployments. > http://www.symantec.com/business/support/index?page=content&id=TECH122730&key=53991&actp=LIST > > that says " You must have at least two MX records and then proper A and > PTR record for each host that will handle email." > > If that's wrong, then like you said that saves me some pain. > > Now that you mentioned it, I'm just looking at the SMTP RFC I found to > see if it says anything about it.
Unless anyone here would like to contradict me, ignore all that and just use one. The SBG document doesn't provide any rationale for me to argue against, but I can't think of any reason why two would be better than one if they both point to the same place.
