9/12/2005
Debugging POP/IMAP/SMTP With Telnet
POP3
$ telnet host.domain.com 110
Trying x.x.x.x ...
Connected to host.domain.com (x.x.x.x).
Escape character is '^]'.
+OK POP3 host.domain.com v2003.83rh server ready
USER USERNAME
+OK User name accepted, password please
PASS PASSWORD
+OK Mailbox open, 48 messages
LIST
+OK Mailbox scan listing follows
1 3894
2 11761
3 5499
4 13448
5 10451
RETR 5
...
QUIT
Trying x.x.x.x ...
Connected to host.domain.com (x.x.x.x).
Escape character is '^]'.
+OK POP3 host.domain.com v2003.83rh server ready
USER USERNAME
+OK User name accepted, password please
PASS PASSWORD
+OK Mailbox open, 48 messages
LIST
+OK Mailbox scan listing follows
1 3894
2 11761
3 5499
4 13448
5 10451
RETR 5
...
QUIT
IMAP
$ telnet x.x.x.x 143
Trying x.x.x.x...
Connected to host.domain.com.
Escape character is '^]'.
* OK [CAPABILITY IMAP4REV1 LOGIN-REFERRALS STARTTLS AUTH=LOGIN] host.domain.com IMAP4rev1 2003.338rh at Mon, 12 Sep 2005 14:12:44 -0500 (CDT)
a LOGIN USERNAME PASSWORD
a OK [CAPABILITY IMAP4REV1 IDLE NAMESPACE MAILBOX-REFERRALS BINARY UNSELECT SCAN SORT THREAD=REFERENCES THREAD=ORDEREDSUBJECT MULTIAPPEND] User USERNAME authenticated
a EXAMINE INBOX
* 46 EXISTS
* 0 RECENT
* OK [UIDVALIDITY 1093716296] UID validity status
* OK [UIDNEXT 610] Predicted next UID
* FLAGS (NonJunk Junk $MDNSent NotJunk $NotJunk JunkRecorded $Junk $Label4 $Label1 $Label2 $Label3 $Label5 \Answered \Flagged \Deleted \Draft \Seen)
* OK [PERMANENTFLAGS ()] Permanent flags
* OK [UNSEEN 27] first unseen message in /var/spool/mail/xxxxxxx
a OK [READ-ONLY] EXAMINE completed
a FETCH 1 BODY[TEXT]
...
a LOGOUT
* BYE host.domain.com IMAP4rev1 server terminating connection
a OK LOGOUT completed
Connection closed by foreign host.
Trying x.x.x.x...
Connected to host.domain.com.
Escape character is '^]'.
* OK [CAPABILITY IMAP4REV1 LOGIN-REFERRALS STARTTLS AUTH=LOGIN] host.domain.com IMAP4rev1 2003.338rh at Mon, 12 Sep 2005 14:12:44 -0500 (CDT)
a LOGIN USERNAME PASSWORD
a OK [CAPABILITY IMAP4REV1 IDLE NAMESPACE MAILBOX-REFERRALS BINARY UNSELECT SCAN SORT THREAD=REFERENCES THREAD=ORDEREDSUBJECT MULTIAPPEND] User USERNAME authenticated
a EXAMINE INBOX
* 46 EXISTS
* 0 RECENT
* OK [UIDVALIDITY 1093716296] UID validity status
* OK [UIDNEXT 610] Predicted next UID
* FLAGS (NonJunk Junk $MDNSent NotJunk $NotJunk JunkRecorded $Junk $Label4 $Label1 $Label2 $Label3 $Label5 \Answered \Flagged \Deleted \Draft \Seen)
* OK [PERMANENTFLAGS ()] Permanent flags
* OK [UNSEEN 27] first unseen message in /var/spool/mail/xxxxxxx
a OK [READ-ONLY] EXAMINE completed
a FETCH 1 BODY[TEXT]
...
a LOGOUT
* BYE host.domain.com IMAP4rev1 server terminating connection
a OK LOGOUT completed
Connection closed by foreign host.
SMTP
$ telnet x.x.x.x 25
Trying x.x.x.x...
Connected to host.domain.com.
Escape character is '^]'.
220 host.domain.com ESMTP Sendmail 8.9.3+Sun/8.9.3; Mon, 12 Sept 2005 12:18:01-0500 (CDT)
HELO me@localhost
250 host.domain.com Hello me [x.x.x.x], pleased to meet you
MAIL FROM:< me@domain >
250 < me@domain >... Sender ok
RCPT TO:< you@domain >
250 < you@domain >... Recipient ok
DATA
354 Enter mail, end with "." on a line by itself
Hi You!
.
250 QAA00316 Message accepted for delivery
QUIT
221 host.domain.com closing connection
Connection closed by foreign host.
Trying x.x.x.x...
Connected to host.domain.com.
Escape character is '^]'.
220 host.domain.com ESMTP Sendmail 8.9.3+Sun/8.9.3; Mon, 12 Sept 2005 12:18:01-0500 (CDT)
HELO me@localhost
250 host.domain.com Hello me [x.x.x.x], pleased to meet you
MAIL FROM:< me@domain >
250 < me@domain >... Sender ok
RCPT TO:< you@domain >
250 < you@domain >... Recipient ok
DATA
354 Enter mail, end with "." on a line by itself
Hi You!
.
250 QAA00316 Message accepted for delivery
QUIT
221 host.domain.com closing connection
Connection closed by foreign host.
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