doc/isp_orange.md

Orange

Find the list of other Internet service providers here.

Email

The Orange box has port 25 closed so as to limit the amount of spam that could be sent from a compromised home connection.

The remaining solution to host one own's email at home is to route it through the Orange SMTP servers.

To that end, one has to edit the postfix configuration file with the following command:

sudo nano /etc/postfix/main.cf

then, add the SMTP Orange server as a relay on the associated line:

relayhost = smtp.orange.fr

restart Postfix :

sudo service postfix restart

Problems

If you are having an "Authentication required" error, the solution is as follows (note: french website): source.

Edit the postfix configuration file

sudo nano /etc/postfix/main.cf

then, add the following lines:

smtp_sasl_password_maps = hash:/etc/postfix/sasl/mdp_fai.conf
smtp_sasl_auth_enable = yes
smtp_sasl_security_options = noanonymous
relayhost = [smtp.orange.fr]:25

Create the mdp_fai.conf file :

sudo nano /etc/postfix/sasl/mdp_fai.conf

add

# mdp_fai.conf
[smtp.orange.fr]:25  emailaddress@at.orange:my-own-password

with your Orange account password.

Integrate the password into Postfix :

sudo postmap /etc/postfix/sasl/mdp_fai.conf
sudo postconf -e smtp_sasl_password_maps=hash:/etc/postfix/sasl/mdp_fai.conf

If you are having an "(SASL authentication failed; cannot authenticate to server smtp-auth.nowhere.com[38.123.22.160]: no mechanism available)" error

Check that libsasl2-modules and sasl2-bin are present :

apt search libsasl2-modules
apt search sasl2-bin

If they are not present, do install them :

apt install libsasl2-modules sasl2-bin

It is possible that postfix does not immediately take into account your modifications. To force it to do so, run

systemctl restart postfix