PS-STI
I want to thank you and EO Networks profusely for your solution! Having just bought this unit and setting it up last night, I was really getting frustrated with this step. And considering returning it.
To add hopefully helpful additional detail.
1. Enabling the SSL/TLS info requires a reboot of the 6027. Don't forget to refresh browser window...
2. Indeed, nothing is entered in the POP3 server address field. (I do have my gmail address in the Login Name field, however).
3. I have to set "Allow Less Secure Apps: ON" in the google account settiings.
When I first tried this solution you provided, I also did have the "Allow Less Secure Apps: ON" from general google account sign-in and security/connected apps & sites. And it worked!
However, I don't like that idea. I changed that back to OFF after first successful scan2email events. Then it killed something (screen shows "Processing" and it was completely unresponsive, and I had to remove power to unlock it! Tried again, same problem. These two tries to scan/email also initiated two blocked sign-in attempts" in gmail, I noted. When I then reset "Allow Less Secure Apps: ON" from general google account...and the scan is emailed ok.
So I set up and am using a different google account than my main one for the printer.
....now, if only I can get the "print two-sided" option to show up on Mac print pages like it does on Windows 7 print pages.