To send emails from firstname.lastname@example.org in Gmail
*** The first step must be to opt-in your CNET ID to authsmtp.uchicago.edu by sending e-mail to email@example.com ***
* In Gmail, click the gear icon, click on "Settings", then go to the "Accounts and Import" tab.
* In the "Send mail as" section, click the link for adding a new email address.
* After specifying the email address "firstname.lastname@example.org", here is the information to enter:
- use the SMTP server "authsmtp.uchicago.edu"
- use port 465
- use SSL, not TLS
- use your CNet ID username and password (neither of which are necessarily the same as for your math department account)
Please be aware that forwarding your e-mail will break DMARC authentication, which so far seems to be employed by NSF and orau.org. You should give such organizations the e-mail that you are using for forwarding to. E.g., if you are forwarding to gmail, give those organizations your gmail address. Another alternative would be to use POP to transfer your departmental e-mail to gmail instead of forwarding.