Wietse: > > You can find out about SASL active etc. attacks in RFC 4422 > > https://tools.ietf.org/html/rfc4422 > Michael Fox: > Thanks. Yes, that describes the attack categories. But it doesn't answer > the above question. Is the categorization documented somewhere? If not, > how are we to know?
This is standard terminology, and therefore not defined in either Postfix or SASL RFC. Active network attack: an attacker modifies the communication between parties. Mutual authentication: each party authenticates to the other party. For more info I suggest a web search engine. Wietse