What caused this problem?
You might have added the recipient's email address wrongly (with an extra special character) into your email client's address book. To fix this, you will need to correct this problem by removing the special character from your address book as most global email servers, ours inclusive, will not deliver email addresses with special characters.
Why is my IP address blocked due to this?
As we need to protect our server resources from potential abuse & security threat, our servers are configured to temporarily block IP addresses with suspicious activity. If you are experiencing problem due to this, please approach our support team for assistance.