IMAP SASL SASL AUTH EXTERNAL RFC4422 # # Server-side AUTH EXTERNAL REPLY AUTHENTICATE + REPLY = A002 OK AUTHENTICATE completed From: me@somewhere To: fake@nowhere body -- yours sincerely # # Client-side imap IMAP external authentication without credentials 'imap://;AUTH=EXTERNAL@%HOSTIP:%IMAPPORT/838/;MAILINDEX=1' # # Verify data after the test has been "shot" A001 CAPABILITY A002 AUTHENTICATE EXTERNAL = A003 SELECT 838 A004 FETCH 1 BODY[] A005 LOGOUT