When I send email from my gmail address, my recipients are getting a big yellow banner added to it telling them to "Be careful with this message" and "Gmail could not verify that it actually came from email@example.com". I am sending via the VM
After some googling I found this suggestion that I am "sending messages through an SMTP server that is not authorised to send email on behalf of the domain of my email address or that my server does not have all the appropriate signatures".
So, is this a problem with the VM, or something to do with my email client settings. I have outbound mail server set to smtp.gmail.com, maybe that's wrong?