Daniel Starin wrote:
> I heard that a lot of system admins use exim to relay mail
> to an internal exchange server. What is the purpose of this?
> Thanks,
>
There are many reasons:
- Exchange can be hard (if not impossible) to completely secure
against hacking/DOS
- Exchange does not offer the level of access control, filtering, etc.
that Exim does, leading to more junk mail being accepted
- Exchange is not entirely RFC-compliant and occasionally has trouble
accepting legitimate mail from senders that expect full compliance
