[OT] does deliveragent must have a PTR RR
pyh at mail.nsbeta.info
pyh at mail.nsbeta.info
Tue Feb 1 03:25:35 UTC 2011
Hi list,
I can't setup a ptr RR for my mailserver's IP.
Here the main ISPs who are owned by this garbage state take expensive price
for setup a reverse record for a public IP. It's about 30 USD each month
for each IP.
But some MTAs does require the peer deliveragent has a PTR RR,like AOL's
email systems.
Is there a special RFC for this requirement?
Regards.
Mail Delivery System writes:
> This is the mail system at host mail.nsbeta.info.
>
> I'm sorry to have to inform you that your message could not
> be delivered to one or more recipients. It's attached below.
>
> For further assistance, please send mail to postmaster.
>
> If you do so, please include this problem report. You can
> delete your own text from the attached returned message.
>
> The mail system
>
> <donovan at beth.k12.pa.us>: host mx1.beth.k12.pa.us[209.96.96.11] said: 450 4.7.1
> Client host rejected: cannot find your reverse hostname, [121.9.221.212]
> (in reply to RCPT TO command)
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