Matus UHLAR - fantomas <[EMAIL PROTECTED]> writes: > Maybe the SA people decided not to do that. Maybe only those > should provide SPF records who can verify their own customers - > why should you use SPF otherwise?
Sorry, I don't understand the logic behind this... >> What would be the sideeffects of adding '+ip4:192.168.0.0/16' >> to the SPF record? > > mailservers on other networks could have FP's when receiving > spam with your domain from their private networks... An SPF_PASS is pretty worthless (there are rumors that more SPF_PASS are generated by spammers than by legitimate mail ;) ), but SPF_FAIL can give important scores to mark spam as such one. For now, I added the whole IANA blackhole ranges to my SPF record... The openspf documentation uses this in an example too so it should be ok. Enrico