> We are seeing problems with greylisting in mails coming from UPC > mailservers. After receiving our "451 Greylisting" response, we never > see a retry of the mail again. The sender does not receive an NDR. We > have seen this behaviour from the servers at 84.116.36.xxx. Other > servers for example the ones in the range 62.179.121.xxx are retrying > correctly. > > Anybody from UPC here to help sort this out or is anyone else seeing the > same problem or is no one using greylisting anymore these days?
We have seen the very same problem with the very same ISP... We turned off greylisting for now. _______________________________________________ swinog mailing list email@example.com http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog