[Mimedefang] DNS Lookups in MD - Was RBL and DNS lookups
brennan at columbia.edu
Tue May 15 09:59:55 EDT 2007
--On Tuesday, May 15, 2007 9:45 -0400 Jeff Rife <mimedefang at nabs.net> wrote:
>> This test is based on AOL's reverse pointer rules. AOL uses this test
>> to outright block email. We use it ONLY to score email.
No they don't. AOL says they "may" block mail without PTR.
Lead Email Systems Engineer
Columbia University Information Technology
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