The recipient address rejected your message. Your message has been labeled and detected as spam mail or blocked for any reason via the recipient server configurations.


Cause by anti-spam filter

  • Your email possibly has been flagged as spam or blocked for any number reasons via the receiving server configuration.


Step 1: Not Spamming And Black-Listing Free

Ensure that your server is not spamming and is black-listing free.

Step 2: Request Whitelisted

Request that your mail server be whitelisted at all time by the receiving mail server.