This may not be the site for this question
I have a domain name I registered with 1and1. I am using squarespace to host my website, pointing to that domain, and I just signed up for office365, and want to use that for email.
Squarespace provided me with an IP address to set as the A record. I added this on my 1and1 admin console, and was able to access my webpage. Office 365 provided me with two name servers, for my email, and told me this would not change my A record mapping. As soon as I entered the name server information, I was no longer able to bring up my web page at squarespace.
I do not know much about DNS or hosting, so I am not sure if what I want to do is even possible. Though I imagine it would be. Any help is appreciated.