-xx@host.test.ex is undeliverable:
- mail domain "host.test.ex._bad" is syntactically invalid
-yy@host.test.ex cannot be resolved at this time:
- lookup of host "bad_host.test.ex" failed in domainlist router: syntax error in name
+xx@host.test.ex is undeliverable: mail domain "host.test.ex._bad" is syntactically invalid
+yy@host.test.ex cannot be resolved at this time: lookup of host "bad_host.test.ex" failed in domainlist router: syntax error in name