Let's say I have two Google accounts:
I am connected to Gmail on my
perso account. I have added
pro as an alias address to send mail as, in the Gmail settings (Settings > Accounts and Import > Send mail as).
But, when I select the
email@example.com address when sending a mail, some of my contacts sometimes still see the original,
firstname.lastname@example.org address. And by checking the raw message, apparently,
email@example.com is still used in the
firstname.lastname@example.org is only present in the
How to make it so that the persons I send mail to never see the address
email@example.com? I tried checking and unchecking "Treat as an alias" in the Gmail settings, but this did not change.