What does “Reject for policy reason. RULE1_1” mean?

A virus or malware was detected. Please clean and secure your system. If you continue to have problems, please contact our support team. When contacting support, please provide:

• The sender’s email address

• The recipient’s email address address

• The date and time of sending

• The subject of the message

After contacting support, they may also ask you to provide a copy of your email as an .eml file. You can read how to download a copy of your email on our email FAQ page.