mouss schrieb:

>>> reject_backscatter =
>>> reject_rbl_client

>> Which will very likely result in a lot of false positives.

> an FP here would mostly be: a bounce from a 3d party that is listed on
> do you get a lot of such mail?

No, an FP is an FP. lists a lot of perfectly valid
mailservers, and outright blocking at the MTA with that list is a bad idea.

-- Matthias