POP3 POP3 AUTH PLAIN RFC1734 RFC4616 # # Server-side REPLY AUTH +OK\r\nPLAIN\r\n. REPLY AUTH PLAIN + REPLY dGVzdAB0ZXN0ADEyMzQ= +OK User authenticated REPLY LIST +OK No messages\r\n. # # Client-side pop3 POP3 plain authentication pop3://%HOSTIP:%POP3PORT/ -u test:1234 # # Verify data after the test has been "shot" AUTH AUTH PLAIN dGVzdAB0ZXN0ADEyMzQ= LIST QUIT