FAQ - My message has been blocked or rejected

In order to combat the ever changing tactics used by spam senders worldwide, our mail filtering services deploy several pre-filters to prevent spam from entering the system.

If you are a sender of email to a service customer and your message is getting blocked by the pre-filters, please see these FAQs to resolve the problem.

FAQs

• Does the service provide a facility for bulk mail senders and carriers to have open access to the system?
• I am a sender of legitimate email. How can I ensure this gets through to a mail filtering service user?
• What does "550 Rejected by content scanner (CMAE)" mean?
• What does "554 Service unavailable; Client host [xx.xx.xx.xx] blocked using......" Mean?
• How do I remove myself from a block list?
• What does "550 <>: Sender address rejected: Please see........" mean?