You mentioned that you want to “ move all my professional emails”. I take this as you already had custom email setup, but it no longer works, is this correct?
But yes, you will need to find and configure an SMTP provider (Like Gmail) and connect it your account here. The directions to do so differ depending on your provider.
Thank you so much for your reply! Everyone is so helpful here!
To answer your questions : I take this as you already had custom email setup, but it no longer works, is this correct?
Yes, I already had custom email setup with name.com hosting services and now it no longer works, correct. They were using roundcube for email interface just like infinityfree.
How do I configure an SMTP provider and connect it to my account HERE?
So Google Workspace? Google does not provide custom domains for free (But they do provide a free SMTP service).
Do you want to pay a monthly fee or do you want to find a free alternative? If you don’t want to spend money, I would try using Cloudflare (You will have to join a “waiting list” and it may take a few weeks to get accepted, but after that its smooth sailing).
You may use improvmx for custom emails. It will route all emails to [email protected] to your provided gmail address. Improvmx services are free. After this you can use smtp with gmail to send emails from these aliases.