IMAP test

MESSAGES may be one of MESSAGES, UNSEEN, RECENT UIDNEXT UIDVALIDITY

telnet imap.example.com 143
1 LOGIN username password
2 LIST "" *
3 SELECT Inbox
4 STATUS Inbox (MESSAGES)
5 CLOSE
6 LOGOUT

All IMAP headers in message #1

 5 FETCH 1 ALL

headers and body in message #1

 6 FETCH 1 FULL

body only in message #1

 7 FETCH 1 BODY

envelope only in message #1

 8 FETCH 1 ENVELOPE

Get full email in all(*) messages

 9 FETCH * FULL

Get full message #1

 10 UID fetch 1:1 (UID RFC822.SIZE FLAGS BODY.PEEK[])