How to setup an efficient mail server?

I looked up but could not see any tutorial to set up an efficient mail server via Cyber Panel. I want to send mail (Word Press) directly to the recipient’s email folder. I have a MailGun account. Do I need to use bind DNS function to set up a mail server? Currently, I use Cloudflare as my DNS configuration.

Hi there. This article may be of use to you…

Is it possible to import email from Gmail account?

It is.
Check GitHub - imapsync/imapsync: Imapsync is an IMAP transfers tool. The purpose of imapsync is to migrate IMAP accounts or to backup IMAP accounts. IMAP is one of the three current standard protocols to access mailboxes, the two others are POP3 and HTTP with webmails, webmails are often tied to an IMAP server. Upstream website is