Pretty much I need to froward any email destined to Userxx@??? or
Userxx@??? to Userxx@??? while restricting relay access to
authorized servers and allowing relay_from_hosts to email to any outside
domains.
On Wed, Jul 26, 2017 at 12:13 AM, Ian Zimmerman <itz@???>
wrote:
> On 2017-07-25 21:55, Tech Gurus via Exim-users wrote:
>
> > I have EXIM server "Server1.domainA.com" running as relay, I restrict
> > relay to hosts defined on *relay_from_hosts* . My company owns 2 old
> > domains (DomainB.com and DomainC.com) that we need to configure the
> > EXIM server to receive emails for after changing MX records to point
> > to EXIM server.
> >
> > - How to configure EXIM to receive mail “From Anywhere” for
> > DomainB.com and DomainC.com while restricting relay to
> > *relay_from_hosts*
> >
> > - How to rewrite the incoming emails to @DomainB.com and @DomainC.com
> > to forward to @DomainA.com. As example: Incoming email to
> > User1@??? should be delivered to User1@???
>
> 1. Start with the example base configuration, which gives you some
> basic ACL machinery.
>
> 2. On all servers, include all domains (ie. Domain[A-C].com) in the
> conventional domainlist local_domains. This will make the ACL machinery
> pass mails addressed to these domains before relaying is checked for.
>
> 3. On the "legacy" servers replace the local delivery routers (that is,
> all routers following dnslookup, and not including it) with a single
> router that just forwards to DomainA.com. This can be done, for
> example, with a manualroute router whose route_list is something like
>
> route_list = * mxhost.DomainA.com
>
> and whose transport is remote_smtp.
>
> 4. Optionally, you can think about what should be done with the
> local_aliases router. (Do you want aliases expanded on the legacy
> servers?)
>
> And, as always, the Spec is your friend, or foe :-)
>
> --
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