KB06082101 Messages returned marked 'Blacklisted'
If you are getting email returned to you marked 'Blacklisted' remember that your organization's Senders must either be within the LAN as defined at Options | Server*, to be able to send mail through Mailtraq, or they need to be using an SMTP-Auth connection. If not you will see messages similar to:
The following recipient(s) could not be reached:
Jane Doe on 8/25/2008 8:17 AM
554 blacklisted (email@example.com)
In this example John Smith (jsmith) was sending email from a machine that was not included in the LAN definition for (domain.com) and so the message he was tying to send to Jane Doe was rejected by Mailtraq.
Users inside the LAN (Local Area Network):
So - make sure your LAN definition correctly describes your local area network, and the IP addresses your Users will be connecting from. Read how here ...
Users outside the LAN
Users outside the LAN need to be using an SMTP-Auth connection. Read how here ....
550 type errors
See 'Mail Relay Denied' resolution...