local host has lowest MX
host_find_bydns yield = HOST_FOUND_LOCAL (3); returned hosts:
eximtesthost.test.ex ip4.ip4.ip4.ip4 MX=5
local host has lowest MX
host_find_bydns yield = HOST_FOUND_LOCAL (3); returned hosts:
eximtesthost.test.ex ip4.ip4.ip4.ip4 MX=5