Hi Stefan, sorry for my late reply.
The message is in the dialog box when we click triangle at sender details.
Not all emails were having that kind of security status.
After discussing with AWS Support, it seems that I have to require TLS connection on every sending process. This can be done by adding email header: X-SES-CONFIGURATION-SET
Is AWS SES integration in newsletter plugin has this feature? if not, where should I add this header?
is adding:
$this->phpMailer->addCustomHeader(‘X-SES-CONFIGURATION-SET’, ‘my-aws-configuration-set’);
in plugin.php row 664 is safe?
Thanks for your response…