A user reported that she was unable to get her email today and was receiving
an error in Outlook when she attempted to download her email. I logged into
the email server, which runs
Dovecot. I tried
establishing a telnet connection to the
POP3 port on
the server. I was able to successfully connect to the
well-known port,
TCP
port 110, used for POP3 connections. I could then enter the user's
username with the user command, but I never received a
reponse from the server, i.e. from Dovecot. I eventually had to hit
ctrl-], i.e., the Ctrl and "]" keys to return to the shell prompt.
$ telnet 127.0.0.1 110 Trying 127.0.0.1... Connected to 127.0.0.1. Escape character is '^]'. user nell ^] telnet> quit Connection closed. $
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