Note: This calendar view maps the number of captures of https://login.live.com/login.srf?wa=wsignin1.0&rpsnv=13&ct=1496163156&rver=6.7.6643.0&wp=MBI_SSL_SHARED&wreply=https:%2F%2Fmail.live.com%2Fdefault.aspx%3Frru%3Dinbox&lc=1033&id=64855&mkt=en-us&cbcxt=mai, not how many times the site was actually updated.
Look Up URL in general Internet Archive web collection.