address(es) failed:
fail@myhost.test.ex
+ host 127.0.0.1 [127.0.0.1]
SMTP error from remote mail server after RCPT TO:<fail@myhost.test.ex>:
- host 127.0.0.1 [127.0.0.1]: 550 Recipient not OK
+ 550 Recipient not OK
------ This is a copy of the message, including all the headers. ------