I have a domain www.somename.nl
I use the domain for a self-hosted website, and for email. Until now, the email was provided by the hosting provider and it was being used via their webmail portal and via pop3.
I started a trial for office 356 for business. Initially I got a email address from them in the format email@example.com . I of course rather want to use my email address in the format firstname.lastname@example.org
It seems that for that I need to change some DNS records, as mentioned in this manual: https://support.office.com/en-us/article/Create-DNS-records-for-Office-365-at-any-DNS-hosting-provider-7b7b075d-79f9-4e37-8a9e-fb60c1d95166
In that manual, they mention
When you update your domain's MX record, all new email for anyone who uses your domain will now come to Office 365.
That's certainly not what I want. I only want to migrate my own email to office365, there are a few other users on the domain that should be able to continue using their mail the way they are used to.
Luckily, for that ms also has a manual: https://support.office.com/en-us/article/Pilot-Office-365-with-a-few-email-addresses-on-your-custom-domain-39cee536-6a03-40cf-b9c1-f301bb6001d7?ui=en-US&rs=en-US&ad=US
unfortunately, I get stuck at this piece of the manual;
Instead of creating a new SPF record, add include:spf.protection.outlook.com to your existing SPF record.
SPF record: “v=spf1 mx include:adatum.com include:spf.protection.outlook.com ~all”
in my DNS configuration, there is no SPF record. I'm afraid I will break mail for the other users if I just change it.
Following the manual, I got to this screen, where I'm asked to change the DNS records. In the screen there is once more the warning that this will change mail for all users in the domain (it's in dutch, but you'll get the idea):
any idea where I should go from here?