Ralph Shumaker wrote:
Paul G. Allen wrote:
Use telnet from the command line to see if anything is listening on the suspected ports.

$ telnet localhost 0
Trying 127.0.0.1...
telnet: connect to address 127.0.0.1: Connection refused
.
.
.
$ telnet localhost 24
Trying 127.0.0.1...
telnet: connect to address 127.0.0.1: Connection refused
$ telnet localhost 25
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
220 myComputerIPv4.dslextreme.com ESMTP Sendmail 8.14.1/8.14.1; Thu, 21 Feb 2008 18:34:08 -0800

Do I need sendmail? Is that something that is necessary for Thunderbird? Or is this something that allows me to operate an email server?

By the way, how do I break the connection between telnet and port 25? My command prompt hasn't returned. ^C, ^D, ^Z don't work. I could just close the VT, but I don't want a telnet zombie.


Sendmail, when on a workstation, etc. that is not running a mail server, is used for sending mail to local accounts for things such as cron jobs and Logwatch.

Once connected to sendmail, you can disconnect with the SMTP command QUIT. You can also use it to send mail, if you know the protocol (which is easily referenced from many web sites).

Also, <CTRL+]> would have broken the connection (the '^]' means to type the control character ']').

PGA
--
Paul G. Allen, BSIT/SE
Owner, Sr. Engineer
Random Logic Consulting Services
www.randomlogic.com


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