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.