A 9.1.5 code in your campaign report means that your contact was "auto-bounced" and your message was not sent. "Auto-bounced" is our term for a global system-level suppression. This will happen only if you send a message to one of the addresses we prohibit.
We prohibit sending to these domains:
- googlegroups.com
- example.com
- lettterbox.com
- notmail.com
- nowhere.com
- test.com
- test1.com
We also prohibit sending to these usernames:
- postmaster@
- hostmaster@
- usenet@
- news@
- webmaster@
- www@
- uucp@
- ftp@
- abuse@
- noc@
- security@
- proxy@
- proxy-owner@
- whois@
- dns-admin@
- listserv@
- mailer-daemon@
- mail-daemon@
- dns@
- nntp@