IMAP telnet direct interaction

Sometimes for odd reasons you will need to connect directly to IMAP protocol and do tests using the telnet tool. Here it is a little example on how I did it:

# telnet localhost imap
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
* OK [CAPABILITY IMAP4rev1 LITERAL+ STARTTLS AUTH=PLAIN] IMAP gateway ready
a1 LOGIN info 123
a1 OK [CAPABILITY IMAP4rev1 LITERAL+ CHILDREN XAOL-OPTION NAMESPACE QUOTA IDLE] LOGIN completed
a2 LIST "" "*"
* LIST (\HasChildren) "/" "Public folders"
* LIST (\HasNoChildren) "/" "INBOX"
* LIST (\HasNoChildren) "/" "Outbox"
* LIST (\HasNoChildren) "/" "Deleted Items"
* LIST (\HasNoChildren) "/" "Sent Items"
* LIST (\HasNoChildren) "/" "Drafts"
* LIST (\HasNoChildren) "/" "Junk E-mail"
* LIST (\HasNoChildren) "/" "Trash"
a2 OK LIST completed
a3 EXAMINE INBOX
* 840 EXISTS
* 777 RECENT
* FLAGS (\Seen \Draft \Deleted \Flagged \Answered $Forwarded)
* OK [PERMANENTFLAGS (\Seen \Draft \Deleted \Flagged \Answered $Forwarded)] Permanent flags
* OK [UIDNEXT 7368] Predicted next UID
* OK [UNSEEN 829] First unseen message
* OK [UIDVALIDITY 17] UIDVALIDITY value
a3 OK [READ-ONLY] EXAMINE completed
a4 FETCH 1 BODY[]
* 1 FETCH (BODY[] {16382}
<MAIL BODY>
FLAGS (\Seen))
a4 OK FETCH completed
a5 LOGOUT
* BYE server logging out
a5 OK LOGOUT completed
Connection closed by foreign host.