[Cialug] SMTP Graylisting & Iowa Telecom

[Ken MacLeod]

On Thu, Mar 19, 2009 at 11:58 AM, Claus <cniesen at gmx.net> wrote:

> Does iowatelecom.net not handle foreign graylisting very well?
>
> A mail got sent via mg.iowatelecom.net [69.66.1.16] to me on Saturday
> March 14 and I did not get the message until today.  We had a meeting about
> the message on Monday and I was the only one in the dark.
>
> I use postfix with postgrey and the default delay of 5 minutes. I checked
> the log for incoming connections from Iowa Telecom and I found one only on
> March 14 and today.
>


I've been seeing DNS resolution problems for sites looking up my MX records
(e.g. mailing list bounces, mailer retries).  Could be a more widespread
problem.

  -- Ken
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