Red Oxygen is an SMS service provider with out-of-box SaaS products as well as highly customizable API and billing solutions that enable SMS enterprise business communications to be sent from the convenience of software platforms you're already using. Send easily through Outlook, Microsoft 365, Gmail, or send in bulk from a .csv file saved from spreadsheets like Excel and Google Sheets. Or using our simple API or browser application you can send SMS from wherever you see fit.