Hi there
I do suck at this, but I managed to create a droplet with Ubuntu 20.04LTS, LAMPS stack and is running a PHP Script I bought for a project I’m starting soon, so far so good. Reading here I understood that installing a mail server is a complex task and it makes a dent on the droplet resources, and obviously I have no idea how to manage that either.
I need to send a confirmation email every time an new user is registered, and I’ve achieved that using Sendgrid and it works, but I have no (free) way to receive pop or imap email. I want to create, (I actually did it on zoho.com) 3 accounts info - register - support @mydomain.com but I can only use one account at the time, is web based, so no pop or imap and no way to use the 3 accounts under a single login or dashboard.
I foudn somewhere that if I have another website on shared hosting, I can somehow use that infrastructure to manage email from the domain hosted on the VPS, based on MX or TXT records,but not sure if I got that right or no.

Excuse my english if it’s not clear enough, maybe I’m asking for something that doesn’t exist as free, but it doesn’t hurt to ask.

Thank you!