userx@other2.test.ex
  router = lookuphost2, transport = smtp
  host other2.test.ex [V4NET.12.3.1] 
userx@ten-5-6.test.ex
  router = domainlist, transport = smtp
  host ten-5-6.test.ex [V4NET.0.0.5] 
userx@mxt7.test.ex
  router = lookuphost, transport = smtp
  host ten-3.test.ex [V4NET.0.0.3] MX=6
userx@mxt9.test.ex
  router = lookuphost, transport = smtp
  host ten-3.test.ex [V4NET.0.0.3] MX=7
userx@eximtesthost.test.ex
  router = lookuphost2, transport = smtp
  host eximtesthost.test.ex [ip4.ip4.ip4.ip4] 
userx@localhost is undeliverable: Unrouteable address
userx@mxt10.test.ex is undeliverable: all relevant MX records point to non-existent hosts
userx@mxt11.test.ex is undeliverable: all relevant MX records point to non-existent hosts
userx@mxt12.test.ex is undeliverable: all relevant MX records point to non-existent hosts