> telnet pop.example.com pop3
telnet: Trying 192.0.2.2...
telnet: Connected to pop.example.com.
telnet: Escape character is '^]'.
server: +OK InterMail POP3 server ready.
client: USER MyUsername
server: +OK please send PASS command
client: PASS MyPassword
server: +OK MyUsername is welcome here
client: LIST
server: +OK 1 messages
server: 1 1801
server: .
client: RETR 1
server: +OK 1801 octets
server: Return-Path: sender@example.com
server: Received: from client.example.com ([192.0.2.1])
server:        by mx1.example.com with ESMTP
server:        id <20040120203404.CCCC18555.mx1.example.com@client.example.com>
server:        for <recipient@example.com>; Tue, 20 Jan 2004 22:34:24 +0200
server: From: sender@example.com
server: Subject: Test message
server: To: recipient@example.com
server: Message-Id: <20040120203404.CCCC18555.mx1.example.com@client.example.com>
server: 
server: This is a test message.
server: .
client: DELE 1
server: +OK
client: quit
server: +OK MyUsername InterMail POP3 server signing off.

> telnet pop.example.com pop3 telnet: Trying 192.0.2.2... telnet: Connected to pop.example.com. telnet: Escape character is '^]'. server: +OK InterMail POP3 server ready. client: USER MyUsername server: +OK please send PASS command client: PASS MyPassword server: +OK MyUsername is welcome here client: LIST server: +OK 1 messages server: 1 1801 server: . client: RETR 1 server: +OK 1801 octets server: Return-Path: sender@example.com server: Received: from client.example.com ([192.0.2.1]) server: by mx1.example.com with ESMTP server: id <20040120203404.CCCC18555.mx1.example.com@client.example.com> server: for <recipient@example.com>; Tue, 20 Jan 2004 22:34:24 +0200 server: From: sender@example.com server: Subject: Test message server: To: recipient@example.com server: Message-Id: <20040120203404.CCCC18555.mx1.example.com@client.example.com> server: server: This is a test message. server: . client: DELE 1 server: +OK client: quit server: +OK MyUsername InterMail POP3 server signing off.