DNS-based block list information/database. Resource to find out information on DNS block lists and check IPs to see if the are block listed in over 100 blacklist in just seconds.
check a domain's SPF (Sender Policy Framework) record, löst includes gleich mit auf | include:_spf.example.com = TXT-DNS-record von _spf-subdomain (dig ... txt) | SPF-Test mit gutem Log (redirect...) http://vamsoft.com/support/tools/spf-policy-tester
Wegen eines Hacks auf den Mailserver der Hochschule Karlsruhe für Technik und Wirtschaft ist CCC-Sprecherin Constanze Kurz als Vortragende ausgeladen worden. Sie sollte bei der Langen Nacht der
desired. Whether it was the incomplete HOWTOs that I was reading or my own lack of knowledge on the subject, I don't know; but after eventually reading through enough document I was able to conceive a solution that works great (so far on two boxes). Most importantly, however, I will attempt to cover and help you resolve the common problems that myself and others have ran into.