Provant un usuari IMAP via telnet …
telnet localhost 143
openssl s_client -connect localhost:143 -starttls imap
openssl s_client -crlf -connect localhost:993
. login usuari password
. list "" "*"
. logout
Provant un usuari SMTP via telnet …
telnet localhost 25
openssl s_client -debug -starttls smtp -crlf -connect localhost:25
ehlo localhost
mail from:<superadmin@localhost>
rcpt to:<loveduser@localhost>
data
Subject: Test
.