Re: [exim] Problem Owner, group or Mode of Exim4

Quoting Jason Meers:

> Usual Permissions required on Config Files
> owner:exim, group:exim, permissions:644

This should be 640, at least if you have secret information like
passwords (e.g. for db access) or private keys in your config.
The exim binary is usually SUID, so it will have sufficient rights to
read its config, even if called by an unprivileged user.