SMTP authenticatie
AUTH PLAIN [crayon-60451a1995bd3298840522/] AUTH LOGIN [crayon-60451a1995bdf206929272/] Let op: Gebruik geen echo in plaats van printf; echo stuurt n !
Tag: telnet
POP3 authenticatie
[crayon-60451a199a5c6940146344/]
IMAP authenticatie
LOGIN [crayon-60451a199a69a492232939/] AUTHENTICATE PLAIN [crayon-60451a199a69f087177738/]