On Thu, 2006-05-11 at 00:50, Alan Premselaar wrote: > > > > The place this is likely to be a problem is where you have > > virtual web servers with names in lots of domains pointing > > to the same box and you do want to accept mail for some > > of those names. Note that CNAMES take all the associated > > data for the related A records, so if you have an MX for > > the real A record, the CNAME'd names get it as well, and > > if you don't, mailers will follow the CNAME to the related > > A record. > > This last part doesn't make a lot of sense, considering it's not legal > to use a CNAME entry as an argument for your MX record.
What I mean is that MX's get dragged along with CNAMEs if one was associated with the target name whether you intend that or not. If you have an A and MX record for mainserver.mydomain.com and CNAMEs for www.mydomain.com and www.otherdomain.com that point to mainserver.mydomain.com you are publishing MX records for those www sites since a CNAME gets all data associated with its target name. > of course, while an interesting topic none-the-less, none of this is > directly relevant to MIMEDefang. Just thought I'd be the one to say it. ;) Agreed, but it can cause some surprises. -- Les Mikesell [EMAIL PROTECTED] _______________________________________________ NOTE: If there is a disclaimer or other legal boilerplate in the above message, it is NULL AND VOID. You may ignore it. Visit http://www.mimedefang.org and http://www.roaringpenguin.com MIMEDefang mailing list [email protected] http://lists.roaringpenguin.com/mailman/listinfo/mimedefang
