Hello,
> On Fri, 23 Jul 2021, Xavier Beaudouin via mailop wrote: > >> domain.tld. IN MX 0 mx1.domain.tld. > >> Why on hell they persist and sign to send mail ONLY on mx2 ? (all MX are >> unfortunatly on same AS, so no this is not routing issues....). > > I wonder if this is a particular handling of a priority of zero? I'd be > tempted to change it to 10 and see if the behaviour continues. > > RFC974 permits (and uses examples of) 0 priority, but we are talking about > a Microsoft implementation here. Well had another domain with 10 priority, same bloody behavior... Still don't understand why Microsoft does not implements RFC974 as it should... (well Microsoft and the mail has been a loooong way to break all RFCs.... but... in this case they are not good at all...). Regards, Xavier _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
