SMTP authenticatie
AUTH PLAIN [crayon-5c144f9e1fd04222473257/] AUTH LOGIN [crayon-5c144f9e1fd0d738791329/] Let op: Gebruik geen echo in plaats van printf; echo stuurt n !
Tag: auth
POP3 authenticatie
[crayon-5c144f9e2654d336357458/]
IMAP authenticatie
LOGIN [crayon-5c144f9e2665f632925018/] AUTHENTICATE PLAIN [crayon-5c144f9e26664683378088/]