Check IMAP and POP3 from Telnet

Here is an example how to check IMAP and POP3 from telnet

#telnet localhost 110
Trying 127.0.0.1…
Connected to localhost.
Escape character is ‘^]’.
+OK Hello there.
USER info@testing.com
+OK Password required.
PASS changeme
+OK logged in.
quit
+OK Bye-bye.
Connection closed by foreign host.