Julia Matuszewska

TL;DR: OTP stands for one-time password (or one-time passcode), an autogenerated code that's valid for a single login or transaction. OTP codes come in two types,...

TL;DR: Email address validation checks whether an address is correctly formatted, connected to a live domain, and capable of receiving messages. For high-volume...

TL;DR: SMS is a text-only format capped at 160 characters per segment. MMS extends it with images, GIFs, video, and longer text, but costs roughly 3x more and requires...

TL;DR:  As of May 11, 2026, RCS messages between iPhone and Android can be end-to-end encrypted for the first time. The feature launched in beta with iOS...

TL;DR: MessageFlow is a CPaaS (Communication Platform as a Service) that enables mobile applications to add SMS, email, push notifications, RCS, and OTT messaging...

TL;DR: The benefits of a WhatsApp Business account go far beyond adding a new contact channel. With a verified profile, automated messaging, rich interactive formats,...

TL;DR: An RCS Brand Agent is your brand's verified identity in the RCS ecosystem. It shows your logo, verified name, and contact details natively inside the recipient's...

TL;DR: RCS fallback to SMS is a delivery safety net built into modern messaging platforms. When a recipient can't receive RCS, the platform automatically switches...

TL;DR: RCS messaging (Rich Communication Services) is the modern successor to SMS. It lets businesses and consumers send high-resolution media, interactive buttons,...