On Feb 18, 2011, at 2:52 AM, [email protected] wrote:

Greg Earle writes:

On Feb 17, 2011, at 4:13 PM, Sam Varshavchik <mrsam@courier- mta.com> wrote:
Greg Earle writes:
syslog:Feb 16 16:15:20 isolar courieresmtpd: [ID 702911 mail.error] error,relay=::ffff:98.138.91.23,from=<[email protected] >: 517 HELO nm8-vm0.bullet.mail.ne1.yahoo.com does not exist. I don't really understand why, because sometimes they get through just fine:
That suggests flaky DNS. Not necessarily your DNS, but Yahoo's DNS.
The only thing that can be done, in those cases, is to also whitelist the sending IPs.
Agreed - but isn't
isolar:1:65 [/opt/courier/etc/smtpaccess] # grep 98.138.91 default
98.138.91       allow,RELAYCLIENT,BOFHCHECKDNS=0,BOFHCHECKHELO=0
"whitelist[ing] the sending IPs"?

Ok, but did you run makesmtpaccess? Check the timestamp on smtpaccess.dat

Of course, I run it after any change to .../etc/smtpaccess/default.

That's why I'm so baffled :)

Obviously I could try fully-qualifying the entries and avoid using any subnet specifiers, but ... oh, the pain :(

        - Greg

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