Hi Sandy, Thanks for the info. Is there any problem with using the same host name for both MX record and A record? Although this wouldn't apply if you are writing to me at imailad...@bcwebhost.net because the MX record has no host name but it points to a real host name (mail.bcwebhost.net). However, would there be a problem writing to me at imailad...@mail.bcwebhost.net, since the MX record for mail.bcwebhost.net points to mail.bcwebhost.net, which is an A record?
Thanks, Ben -----Original Message----- From: Sanford Whiteman Sent: Tuesday, November 20, 2012 5:32 PM To: Declude.JunkMail@declude.com Subject: Re: [Declude.JunkMail] MX, DNS and other weird stuff > Second problem: > In our new DNS records, I have it set up something like this: > two MX records: > bcwebhost.net MX mail.bcwebhost.net > mail.bcwebhost.net MX mail.bcwebhost.net > one A record: > mail.bcwebhost.net A (IP.200) > Is there any reason I can't have the same name for both an MX and > an A record (in this case, mail.bcwebhost.net)? > The Comcast people claimed this was wrong and that the MX record > should point to an IP address directly instead of a host name (which > I'm sure is wrong). Absolutely, without any doubt, they are wrong. MX RRs MUST point to A (hostname) records per RFC. Not to alias (CNAME) records (though this can function 95% of the time, it is an RFC violation). And *definitely* not to IPs. "This domain name must have as its value one or more address records. Currently those will be A records, however in the future other record types giving addressing information may be acceptable." "The domain name used as the value of a NS resource record, or part of the value of a MX resource record must not be an alias." -- both RFC 2181 > They tried to claim that this is the cause of my original problem > but even if they're right about this, then it still doesn't explain the > original problem. I'll reflect on your first problem later. Do not worry at all that they are right here. -- Sandy --- This E-mail came from the Declude.JunkMail mailing list. To unsubscribe, just send an E-mail to imail...@declude.com, and type "unsubscribe Declude.JunkMail". The archives can be found at http://www.mail-archive.com. --- This E-mail came from the Declude.JunkMail mailing list. To unsubscribe, just send an E-mail to imail...@declude.com, and type "unsubscribe Declude.JunkMail". The archives can be found at http://www.mail-archive.com.