Am 08.04.2011 13:48, schrieb Gábor Lénárt: > On Fri, Apr 08, 2011 at 05:05:45PM +0530, kshitij mali wrote: >> HI All >> >> >> Postfix will try to deliver email based on A record suppose the mx record is >> missing , so how to diable this . >> >> I mean to say postfix should send email based on MX record only and if mx >> record not bound then immediatly bounce the sender . > > I don't think it's a good idea, it's part of the standard. We have smaller > (legitime) mail servers receiving mails having only A record. Why would I > need MX record, if A is ok for me? I only set up MX records when it's > needed (the DNS name itself has an A record already but MTA receiving its > mail is not at the same address as A record would tell), otherwise I leave it > alone with the A record only. I think there is no problem with this > practice.
in fact you should not do this because it needs two dns-queries for the sending server everytime and you set the MX only once but yes, it is in the standard and postfix will hopefully not support such broken setup
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