Yes — you can use a smartphone or tablet to access webmail.spectrum.net login (https://webmailspectrumlogin.com/) via a mobile browser. Simply open your mobile browser, go to webmail.spectrum.net, enter your email credentials and sign in as you would on a desktop. There's no need to install a special app if you prefer browser access. Some email client apps (e.g. Gmail or Outlook) may also support adding your Spectrum or legacy RR/TWC email account via IMAP or SMTP settings — but the simplest way is direct login via the web portal.