Blank email messages not sending

[John_]

I have tried to send a blank email message to myself via BT webmail and this message popped up:  

"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. (6-1-1-1) ID (6A08C1FD01B1705C)"

There was no content in the message. It was blank. Only the subject line had text "Test from web email"

I've notice over the last few days when using a client (Outlook 2016 in my case)  message show as sent on the application but not on webmail.  This has caused me some grief, in thinking folk had received emails but they ahd disappeared. 

Help and advice welcome.    BT email regularly lets me down!! 

[Michael_D]

Hi @John_ 

Thanks for coming to the community.

If you are seeing that error, it will be that it is being picked up by our spam filters, perhaps with it being a blank email other than the title, and the title being in that way.

If you try to send yourself an email with more in the title and content in the body of the message does it send?

With regards to your Outlook 2016 client, if you send emails in webmail do they send?

Michael

[John_]

For over 5-years using Outlook 2016 as a client outgoing emails regularly fail to send and Outlook generates a dialogue box prompting for a password, with the correct password already entered.  I go through the whole rigmarole of checking port numbers and protocols and they are all fine.   Most recently - whilst trying to confirm insurance for  an an event for an community amateur sports club I am a volunteer, a variation on the same theme was that the emails show in Outlook's sent folder but cannot be found on BT's server.   I tried sending messages via BT webmail and got the message as shown in my original post.   I then tried sending email message with no content save for subject line "test etc", same problem.  I then tried sending with no content and nothing in the subject line, same problem. I then asked my wife to forwarded he latest BT bill  from her BT web email to my BT email address,  same problem.  BT will do what they always do - and blame their customers.