One correction below:
> Tom?s Crespo:
> > Now, I getting this with Exim with these lines:
> >
> > cram_md5:
> > driver = cram_md5
> > public_name = CRAM-MD5
> > client_name = $sender_address
> > client_secret = samepasswordforeveryone
> >
> > I?ve read about sender_dependent_relayhost_maps in Postfix, but I don?t want
> > to manage a list with all users, and have to add or remove when a new user
> > is created or deleted.
> >
> > I want postfix use a variable (sender address) as login and always the same
> > password to authenticate with my ISP SMTP.
> >
> > Is that posible??
>
> Use a regular expression table.
>
> /etc/postfix/main.cf:
> smtp_sasl_password_maps = pcre:/etc/postfix/sasl_pass
> smtp_sender_dependent_authentication = yes
>
> /etc/postfix/sasl_pass:
> /.+/ ($1):samepasswordforeveryone
Should be:
/(.+)/ $1:samepasswordforeveryone
> Be sure to "chmod 400 /etc/postfix/sasl_pass".
>
> References:
> http://www.postfix.org/postconf.5.html#smtp_sasl_password_maps
> http://www.postfix.org/postconf.5.html#smtp_sender_dependent_authentication
> http://www.postfix.org/pcre_table.5.html
>
> Wietse
>