What is webmail.spectrum.net used for?

[webmail.spectrum.net]

The URL webmail.spectrum.net provides a unified web-mail portal for users of formerly different services like Roadrunner, RR.com, TWC or Brighthouse. Rather than visiting separate legacy email login pages, users simply head to this domain to access their inbox. Through this portal, you enter your existing email address and password, and then you are directed to your webmail inbox, where you can read, compose, and organize emails. Essentially, webmail.spectrum.net login is now the central hub for all legacy accounts that migrated over to Spectrum — so you don't need multiple login pages.