How to obtain an answer from a question made in a Tutorial?

I really don’t want to sound rude, please believe me, it’s just the last answer in the comments of the tutorial I have register a help request in, has more than a year and there are many questions after that without answers… so, is it possible the answer to my request will never come? Thanks!

— Tutorial: https://www.digitalocean.com/community/tutorials/how-to-set-up-a-postfix-e-mail-server-with-dovecot — User: alecfunes