Bug#307370: update-exim4.conf.8.gz: implications of multiple hosts

[Dan Jacobson]

Package: exim4-config
Version: 4.50-6
Severity: minor
File: /usr/share/man/man8/update-exim4.conf.8.gz

You mention
       dc_smarthost
              List of hosts to which all outgoing mail is passed to  and  that
              takes care of delivering it. Multiple hosts are colon separated,
              and all deliveries go out to TCP port 25.  Specifying  different
              ports  is  not (yet) possible due to upstream restrictions. Used
              as value of the DCsmarthost macro.

but you don't say what this does:
*Uses both hosts in parallel?
*Uses first host, and if not working, then uses second host?
Etc. etc.