Adding Calendar, DNS CNAME settings, Need Help

Hello--

We have a domain that we use for email (let's call it example.com). The domain is managed through Go Daddy. I spoke with Go Daddy tech support about how to add a new Mac Calendar account that is tied to example.com, so that Calendar invites come from email@example.com. She pointed me to the DNS CNAME records, and said this is where I would add a CNAME record for the Calendar account, however she didn't know what the record should be or how to set it up (i.e., "but this is where you would add the info.") She indicated that I should just "Google it", which I did, but I could not figure out what to do. So I came here for help.

I specifically need help on creating a new "CNAME (Alias)" DNS record. When I log into Go Daddy's "Domain Details" portal, and then select the "DNS Zone File" tab, I can see all of the Zone Files (i.e., A(Host), AAAA(iPV6 Host), CNAME(Alias), etc). Looking at the CNAME records, I can see that there are three CNAME records (reporting as Host, Points To and TTL).

1. email, email.secureserver.net, 1 hour

2. ftp, @, 1 hour

3. www, @, 1 hour

The Go Daddy gal said that I needed to add a new CNAME record for calendar that points to the correct ____. So that is what I specifically need help with: When I add a new calendar DNS record, what should the "Host" and "Points To" fields be (TTL is just the time to live, so I'll just leave that as 1 hour)?

Also, when I then go into Mac's Calendar and add an account, will I just use my email@example.com and password to create the account, or is that another trick?

I'm standing by to answer any questions.

Thanks for your help--I REALLY appreciate it.

All best,

MC