The most reliable way to identify all external emails is:
To check if the email has a different font and logo
To look for the [External] tag and the External Email Header
To look in your Junk email folder
There is no way to reliably identify external emails
Shubham Haldkar Changed status to publish 12, August ,2022
To look for the [External] tag and the External Email Header
Shubham Haldkar Changed status to publish 12, August ,2022