I use postfix on my server only to forward emails to my gmail account.
Former, it was possible to add my sender address in gmail when only I was the receiver of a test-mail. So I could use gmail to send emails with my address
me@mydomain.com.
Today gmail wants a password for smtp.
Because I have my own server, I could install and configure everything, when I only knew what and how.
Google wants a) smtp-server address (like smtp.mydomain.com) and b) password.
Because I have installed no password on the postfix-server, I don't know what to add there. In other words: How can I install a user who has a smtp-password?
Has anyone configured postfix with a user and smtp-password? Or do I need another software as well?