Q0419

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I have some obsolete domains which people have been warned not to use any more. How can I arrange to delete any mail that is sent to them?

To reject them at SMTP time, with a customized error message, place statments like this in the ACL:

deny message = The domain $domain is obsolete
     domains = lsearch;/etc/exim/obsolete.domains

For messages that don't arrive over SMTP, you can use a router like this to bounce them:

obsolete:
  driver = redirect
  domains = lsearch;/etc/exim/obsolete.domains
  allow_fail
  data = :fail: the domain $domain is obsolete

If you just want to throw away mail to those domains, accept them at SMTP time, and use a router like this:

obsolete:
  domains = lsearch;/etc/exim/obsolete.domains
  data = :blackhole: