On Thu, 13 Oct 2011, Ernst du Plooy wrote: >They insist their DNS settings are RFC compliant. > >Their DNS records looks like this: >c.domain.com IN A 1.1.1.1 >a.b.domain.com. IN CNAME c.domain.com. >c.domain.com. IN MX 10 mail.domain2.com >c.domain.com. IN MX 20 mail2.domain2.com > >[email protected] will be rewitten to [email protected]
Yes, their DNS settings are RFC compliant. But IMHO they should realize that: 1) This construction was not RFC compliant in the past and there has been -in the past- a long tradition of rewriting such addresses. 2) The past never ends. 3) They cannot control how third parties handle their addresses. (I don't assume that you are the only third party involved in using those addresses.) So they better should be prepared to handle inbound mail directed to the rewritten adresses if they insist on using this CNAME. Or they should accept losing some mail. Notwithstanding the above, you probably shouldn't rewrite those addresses. Best regards, Kees. -- Kees Theunissen F.O.M.-Institute for Plasma Physics Rijnhuizen, Nieuwegein, Netherlands E-mail: [email protected], Tel: (+31|0)306096724, Fax: (+31|0)306031204 _______________________________________________ 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
