Updated FAQ

FAQ.md

@@ -947,8 +947,8 @@ Note that this is independent of receiving messages.
 **(34) How are identities matched?**
 
 Identities are as expected matched by account.
-For incoming messages the *to* and *cc* address will be checked and for outgoing messages the *from* addresses will be checked.
-Archived messages will be considered as incoming messages, but additionally the *from* address will be checked.
+For incoming folders the *to*, *cc* and *from* addresses will be checked
+and for outgoing folders (drafts, outbox and sent) the *from* addresses will be checked.
 
 The matched address will be shown as *via* in the addresses section.