Re: [exim] Force all local senders to authenticate

Oliver von Bueren wrote:
> Main part of the configuration
>
Forgot one small piece, advertise SMTP AUTH on all ports except the
inbound MTA one, which of course is 25.

# Auth on ports not used for MTA (=> MUAs)
auth_advertise_hosts = ${if IS_MTA_PORT {}{*}}

Oliver