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Re: AOL rejecting hosts with no rDNS?

2004-06-25 06:33:45
Carl Hutzler wrote:
1.2.3.4 has PTR mail.foo.com, then mailserver will check that mail.foo.com as 1.2.3.4 as IP.

This kind of rule elimate 80% of spam. Other servers are just half configured systems, so colateral damages are not too mutch big.

/Xavier


Except for webhosting companies who have 1000's of domains on a single IP address. Right?

There's nothing stopping them having

d.c.b.a.in-addr.arpa.           PTR     someserver.webhostingco.com.
someserver.webhostingco.com.    A       a.b.c.d

Paul.


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