KeyHelp Community

Hello all,

I'm using KeyHelp on my server and would like to configure Postfix to allow all SMTP users to send mail only from their SASL username.

So Postfix should check before sending an email out if the SASL username is the same as the FROM address.

I am looking forward to your answers.

Hello,

the postfix option for this is reject_sender_login_mismatch
You should find several howtos about using this feature.