You really have two problems

The first problem is archival and storage of your existing messages. For this you are dependent on whatever tools GoDaddy gives you, if GoDaddy is your current email provider and client. There’s probably a way to use an email client to connect with the IMAP server and download them, but the place to start is with the GoDaddy documentation.

The second problem is how to move your domain name registration to a new registrar. The good news is that this is always possible, annoying but not difficult, and allows you to completely retain control over the domains. Here again you need godaddy’s documentation regarding how to transfer the domain name to another registrar. Cloudflare is one option that allows email forwarding and has excellent documentation, but there are lots of alternatives. It should cost you about $12 a year for your domain, and email forwarding from there should be free. The easiest system is just to have a Gmail address that all of your custom addresses forward to, but it’s up to you.

How do you back up your secrets? Do you have to do it at the time you first see them?

You must be new here.

Only a fool would trust Oracle in any way, shadow, or form.

They are IT poison.

I’m glad their offering meets your needs, but I would not trust them even to boot a blank docker image.

Cloudflare can do it for free.

Create your account

Add that domain to the list of your sites

Then set up an email route with catch all forwarding that goes to any Gmail address you control.

The beauty of this is that

Webmaster@my-domain.com

Sales@my-domain.com

Support@my-domain.com

Also come to you, and may look more professional

Alternative: Google workspaces will do it, and Gmail becomes the interface with no forwarding. It’s slightly less automated to set up vs cloudflare.