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fencepost mail settings

by Ward Vandewege Contributions Published on Sep 15, 2010 02:16 PM

Smtp settings

Fencepost.gnu.org is configured to accept authenticated smtp connections on port 25 and 587. PLAIN and LOGIN are accepted, but only when STARTTLS is enabled. CRAM-MD5 is accepted regardless of the use of TLS. We recommend you always connect with STARTTLS so that the connection between your computer and fencepost is encrypted.

Password

You can set your pop3 and smtp password with the

   popauth
command on fencepost.

Please note that the password must match this regular expression to be used for smtp:

  ((?=.*[[:digit:]])|(?=.*[[:punct:]]))(?=.*[[:lower:]])(?=.*[[:upper:]]).{8,}
In plain language, that means the password must contain at least one number or punctuation character, and it must contain at least one lower case and one upper case character. It must be at least 8 characters long.

The pwgen command is a good way to generate passwords that conform with the regular expression above.

In addition, the password many not contain your username.

When you set a password with popauth, the new password will be active immediately for pop3. However, it will take up to 5 minutes for your new password to become active for authenticated smtp - if your password conforms to the rules outlined above.

Icedove/Thunderbird 3.1+ autoconfiguration

If you use Icedove/Thunderbird 3.1+, the POP3/SMTP settings for your @gnu.org account will be autodetected.

Manual configuration

POP3 server: fencepost.gnu.org
POP3 port: 995
POP3 settings: SSL/TLS

SMTP server: fencepost.gnu.org
SMTP port: 587
SMTP settings: STARTTLS

Make sure to enable authentication for both POP3 and SMTP. Use your e-mail address @gnu.org and your e-mail password for both.

SSL key fingerprints

The current fingerprint for the gnu.org ssl certificate used on fencepost:
SHA1 Fingerprint=E3:3F:B0:75:CD:B6:9E:C6:55:4D:FC:50:0E:E2:A2:7B:11:06:6B:AF
MD5 Fingerprint=E1:18:29:BA:8C:59:AB:6E:45:9D:9F:85:D0:91:D3:75

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