[Mailman-Users] Small list for club
barry at python.org
Fri Sep 11 17:45:30 CEST 2009
On Sep 11, 2009, at 11:36 AM, Mark Sapiro wrote:
> Dynamic DNS is a problem for a server sending email. Many ISPs will do
> a reverse lookup on the sending IP and if it doesn't point back to the
> sending domain, will reject the mail.
Even though I have a static address, my ISP won't give me a reverse
DNS, so it can be a problem with any residential broadband service.
Still it's very rare that I get such rejections these days (RedHat was
one culprit, but they whitelisted me).
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