I have been 'working' with my new ISP for a couple weeks to get the rDNS
setup for my server move (I am changing ISPs for a number of reasons).
I was assured on signing that setting up rDNS was 'easy'; it is not.
DIGing up the SOA on my IP rDNS tends to indicate that they have not
updated that zone for many months.
Anyway,,,
A friend using the same ISP 'solved' this by changing his SMTP server to
say the mail for his domain is ok to come from the ISP PTR value. So
let's say that:
My server is: z9m9z.htt-consult.com
And further assume that the reverse for the address where I want to move
it to has a PTR of
9.254.253.50.in-addr.arpa. 3600 IN PTR
50-253-254-9-static.hfc.comcastbusiness.net.
And that 50-253-254-9-static.hfc.comcastbusiness.net has no RR (e.g. A
or CNAME).
Is there someway to get postfix to provide the needed inforation to the
recipient MTA that this is OK and valid?
I am asking, but I suspect that even if I send out things OK, there will
be MTAs out there that will not let their clients send mail to me as my
rDNS does not match.
I am pushing the ISP that will remain unnamed. (oops. :) ) I was
told that 'they are working on it'. Meanwhile I am paying double as I
cannot migrate my server.
I will be pleased if there is a real workaround, but not overly
disappointed if the only way out is through.
