Why do businesses still rely on email?
Because it is the universal hub for identity and integration.
An email address is not just a mailbox. It is the unique identifier that ties together CRMs, logins, HR systems, billing, and communication tools.
If your tech stack is a wheel, the email address is the hub. All other systems are spokes connected through it.
The magic term here is that the email address acts as the primary key of the digital world. In nearly every CRM, database, and SaaS tool, it serves as the unique identifier linking all other data such as purchases, support tickets, and contact information into one complete record.
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