--- "Kurt A. Schumacher" <[EMAIL PROTECTED]> wrote:
> Just a guess: 
> The more retries to a certain SMTP destination, the longer the retry
> interval...leads to exponential delivery times.

no, it's quite sporadic: some emails are retried wihtin 10 minutes, 
and some were delaying for hours.

> Pure greylisting is - just like blacklistsing - is useless or leads to
> unexpected behavior without a well-maintained and monitored whitelist for a
> corporate or ISP e-mail system.

it is actually a well-maintained whitelist, but of course sometimes 
exceptions happen... 
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