Trying to reply all (3 recipients) and got the following error message.
Sorry your email could not be delivered due to content policy reasons. Please check your message content for URLs, content and subject matter that could be construed as Malware, Spam or Phishing before retrying. (6-1-3-1) ID (613A8DE81534DEB5) [Err code: 553]
The email as far as I know contains nothing other than normal text, numerals and + symbols.
Very frustrating I can't reply to my own emails yet plenty of obvious spam gets through. Looking at other topics where users are having issues I think BT have a problem.
Solved! Go to Solution.