Jacky: > Hi, > > Want to set up a dovecot submission server and which will act as a proxy > in front of a postfix server. > > When users deliver email via the dovecot submission proxy, it will > authenticate users and deliver mail to postfix submission service. > > The dovecot submission service support AUTH parameter with the MAIL > command (https://tools.ietf.org/html/rfc4954#section-5) and will send > the parameter during the connection of the postfix submission server. > > But it seems that postfix ignored the parameter and treats all users as > unauthenticated. > > Does anyone know how to configure postfix to accept the AUTH parameter?
Not documented, therefore not supported. The RFC for that protocol does not require that the SMTP server uses the AUTH=sender parameter. > Found doc from google search, but it is for exim only > (https://www.exim.org/exim-html-current/doc/html/spec_html/ch-smtp_authentication.html#SECTauthparamail) AUTH=sender has not been necessary in Postfix so it is not yet implemented. Wietse