Security problem with mail from camera

I have config my night fighter 4A26 to send pics back to me when something happen. The mail incl. 3 pics and the text:

EVENT TYPE: Intrusion Detection
EVENT TIME: 2018.12.12,15:24:55
IPC NAME: Cam 1
CHANNEL NAME: 1
IPC S/N DS-2CD4A26FWDXXXXXXXXXXXXXXXXXXXXXXXXXXXX (the complete serial number).

I have of course used Network, Advanced settings, Email:
SMTP port: 465
Email Encryption: TLS

I also tried SMTP port: 25 and enabled STARTTLS with no change.

But when the mail arrive it is as...

Security problem with mail from camera