Re: [exim] using MX always

Jeff Lasman wrote:
>
> We're considering changing exim.conf so our servers will always check
> for and MX record or A record, and use it, rather than attempt local
> delivery.
>
> I've thought about this for a week, and still can't see any downside
> except a bit more DNS traffic.
>
> Is there a downside we haven't considered?

Do you mean something like:

domainlist local_domains = @mx_any

If so, there's a risk that a spammer will set up a bogus domain with an
MX pointing to your host, and then will start sending spam to that domain.

- Marc