On Fri, Jan 26, 2007 at 12:37:03PM +0000, cl@isbd.net wrote:
On Fri, Jan 26, 2007 at 09:57:44AM +0000, Brett Parker wrote:
On Fri, Jan 26, 2007 at 09:22:40AM +0000, MJ Ray wrote:
cl@isbd.net wrote: [...]
I have Postfix on my home system (for sending mail). If I want it to receive mail as well what do I need to do to the zone file[s]?
Short answer: it depends how your zone and Postfix are configured.
At BSNet (where isbd.net has its zone file) will the CNAME entry I already have mean that mail for xxx@home.isbd.net will get sent on or do the MX records for isbd.net catch home.isbd.net mail as well?
More likely the first than the second, but I seem to recall that some buggy mailservers handled CNAME badly.
Actually not buggy behaviour - an MX should always point to an A record (part of the spec, IIRC), and hysterically, an A record was checked for, now the order is MX -> A -> undefined evilness!
... but that really doesn't answer my question. If there's an MX record (or MX records actually) for isbd.net does that have any relevance to mail for home.isbd.net? If it *doesn't* have any effect then what happens to mail for home.isbd.net - will the CNAME entry have any effect or will the mail just get rejected as having a non-existent destination?
It *should* be rejected.