You Can Now See a Warning When Receiving Mail from a Foreign Domain
If you’re using Gmail and you receive an email from a foreign domain, you can now see a warning when you click on the “Message” tab. The warning will let you know if there is a message from an unknown domain in the body or the to, cc, or bcc fields.
It will also tell you if there are multiple domains listed in the to field.
The extension is designed to work with Google’s “Safe” level. It will allow you to send an email to a foreign domain that is at the safe level, but you can still receive a warning in the message.