Markus Wild schrieb:
Is anyone else getting emails rejected by cybernet/Swisscom with this message:
2007-11-14T09:54:49+0100 louiswu72 postfix1/error[8302]: 1FD0D2B0FA: to=<nnnnnnnnnnnnnn>, relay=none, delay=2.4, delays=2.4/0/0/0.01, dsn=4.0.0, status=deferred (delivery temporarily suspended: host mail.-----.ch[212.90.199.8] refused to talk to me: 421-We are not currently accepting connections from 88.198.198.123. 421-Reason for temporary block: sending us spam 421 Please try again later. We're terminating this connection now.)
This is not gray listing (it would say so if it were), that IP address did send SPAM to us, and got temporarily blacklisted for it. You can contact me privately to sort out the specifics (m.wild@cybernet.ch, or markus.wild1@swisscom.com, in order of preference).
I just wondering why you block with temporary error? When you'd block with 5xx Error the customer would be informed after he sends the mail that it wasn't delivered... With 4xx Error he knows not until approx 4 days after he sent the mail. That seems not to good in my eyes...
Regards André