I don’t remember exactly since it was long ago but i believe its: make a mailgun account (make sure you disable the free trial so it doesnt automatically sign you up for the paid service) generate a new mailbox and save the info it gives you and in your config.hjson add your smtp server “smtp.mailgun.org:465”, smtp login: “[email protected]”, smtp password: “randomcharacters”, a from_address like: "Lemmy noreply ", and set the tls type to “tls”
If thats all the steps let me know so I can make a request to have it added to the wiki of lemmyadmin.site