Other GNU Emacs tips

If you cannot send emails via SMTP from http://hcoop.net/ getting a message saying `relaying denied', this is probably caused by the absence of starttls on your system.

If you don't have starttls emacs will use gnutls-cli to authenticate and it will not authenticate properly against hcoop.net's SMTP server.

Install starttls.

For Debian systems:

For Sabayon, i.e. Gentoo system, I was successfull in compiling the Debian starttls package, and installing it with http://kumatux.org/

After this you'll be able to send SMTP email.