I have M365 Family and a domain name not on GoDaddy

Ken

Each family account will need to visit their diamond and choose an account name. All previous aliases will continue to work.

David

The 'from' address is the domain name, not outlook.com. You can set what the primary alias is within Outlook so you don't forget to change it before sending an email each time.

With regard to transmission of emails, here's what I see from my receiving email's source, I have zeroed out sender ip and removed my domain name, replacing it with "[domain.name]". I have bolded some points of interest.

Sent from my domain to my domain (in Outlook):

ARC-Authentication-Results: i=2; mx.microsoft.com 1; spf=none (sender ip is

000.000.000.000) smtp.rcpttodomain=[domain.name] smtp.mailfrom=[domain.name];

dmarc=none action=none header.from=[domain.name]; dkim=none (message not

signed); arc=pass (0 oda=0 ltdi=1)

Sent from my domain to Gmail:

ARC-Authentication-Results: i=2; mx.google.com;

   arc=pass (i=1); 

   **spf=neutral** (google.com: 0000:0000:0000:0000::000 is neither permitted nor denied by best guess record for domain of [user]@[domain.name]) smtp.mailfrom=[user]@[domain.name]

If I change the MX record and promote my GoogleMail MX entries and resend from outlook to a personal Gmail account, then Gmail treats it as spam (received into spam folder, but with the hotmail MX record promoted to top of the MX priority that doesn't seem to happen when sending, it seems to be valid, albeit spf is "neutral" --I guess that's much better than "fail".

Check the priority of your pamx1.hotmail.com MX record entry, it should be set to a number lower (eg. 0) than the existing MX records (which you can remove after completing full migration). Also, ensure the prefix number to pamx address is the mxRecordValue taken from the GoDaddy "Domain Connect" page's URL.

I can confirm that the mxRecordValue from the URL is the correct number you would enter as part of the MX and TXT records mentioned.

Things that might prevent Outlook from completing setup of your domain within Outlook premium setting could be a competing MX record with same or higher priority value. Another thing is the attempted use of a subdomain, when entering it in the domain validation prompt and in the MX record.

I'd be interested in doing the same thing - however google domains - which is what I am currently using as a registrar - won't even accept any name starting with an underscore so I wouldn't be able to set up the records in this way. I'm sure GoDaddy is paying Microsoft handsomly for the exclusivity. Might have to try to find another family email/calendar solution besides Family 365 because of this.