> -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]]On Behalf Of R. Scott Perry > Sent: Thursday, January 31, 2002 2:12 PM > To: [EMAIL PROTECTED] > Subject: Re: [Declude.JunkMail] Reverse DNS > > >I have been playing with my Declude settings only to realize my > own reverse > >DNS was not configured. My DNS provider told me that he can't provide > >reverse DNS: in order to provide a reverse lookup, the > nameservers have to > >have a > >delegation for the entire netblock that IP address resides in. > >Thus, my ISP has provided reverse DNS for my domain. > > That's all correct; your ISP is the one that has to either host > the reverse > DNS entry, or delegate authority for it to your DNS servers. > > >But, there can only be one reverse DNS entry per IP address, so how do I > >enable reverse DNS for my > >virtual domain customers? > > All you need is a single reverse DNS entry. Technically, you can have > more, but very few programs (if any) can handle more than one reverse DNS > entry. > > There should be no problem sending mail from virtual.example.com even > though the reverse DNS entry is mail.example.com. Just so long as a > reverse DNS entry exists, there should be no problem. If a remote host > doesn't like "virtual.example.com" in this case, it will just > check to see > if it has an MX/A record. > -Scott
Either my situation is different, or I'm not understanding. Let's say my domain is example.com with an MX of mail.example.com and a reverse DNS of 1.1.1.1.in-addr.arpa mail.example.com. Great, works and is RFC compliant. My customer, a virtual host on my Imail server, is customerexample.com, with an MX of mail.customerexample.com and no reverse DNS. I can't solve the reverse DNS issue for mail.customerexample.com. I guess I have to change the MX to mail.example.com, my server. Is this correct? > > --- > [This E-mail was scanned for viruses by Declude Virus (http://www.declude.com)] --- This E-mail came from the Declude.JunkMail mailing list. To unsubscribe, just send an E-mail to [EMAIL PROTECTED], and type "unsubscribe Declude.JunkMail". You can E-mail [EMAIL PROTECTED] for assistance. You can visit our web site at http://www.declude.com . --- [This E-mail was scanned for viruses by Declude Virus (http://www.declude.com)] --- This E-mail came from the Declude.JunkMail mailing list. To unsubscribe, just send an E-mail to [EMAIL PROTECTED], and type "unsubscribe Declude.JunkMail". You can E-mail [EMAIL PROTECTED] for assistance. You can visit our web site at http://www.declude.com .
