Hi list,
I'm trying to eliminate a problem with duplicate emails in alias expansion
and I have seen that some (local generated and SMTP also) messages don't
have the
Message-ID header . I'm reading in in postconf that there is a
configuration
option always_add_missing_headers that does exactly that. If I enable
this
option do I get in any risk of braking anything in my existing setup ?
The manual refers that " this may break DKIM signatures that cover
non-existent headers"
but I'm not sure if that refers to local generated messages or
everything received my SMTP.
I'm not currently using DKIM in my setup.
Thanks for any info
George
