On Mon, Jul 25, 2016 at 11:25:08AM +0200, Ralf Hildebrandt wrote:
> Jul 23 16:02:55 mail-cbf postfix/postscreen[36326]: NOQUEUE: reject:
> RCPT from [106.10.151.33]:55805: 450 4.3.2 Service currently unavailable;
> from=<chineseg...@yahoo.com>, to=<hans.lastn...@charite.de>, proto=ESMTP,
> helo=<nm21-vm2.bullet.mail.sg3.yahoo.com>
>
> Why would postscreen repeatedly TEMPFAIL these delivery attempts?
>
> They come from the same IP (106.10.151.33), go to the same two
> recipients and are sent from the same sender.
You should know this by now:
http://www.postfix.org/DEBUG_README.html#mail
You should also check and report any relevant content from the
postscreen cache.
--
Viktor.
