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EQS Email Queue System

Every salesperson sends as many product emails as they like; EQS queues them and sends at a rate Microsoft 365 will never flag as spam.

In production ASP.NET Core Microsoft Graph Microsoft 365 sign-in SQL Server

Sales teams that email product offers to customer lists all hit the same wall: Microsoft 365 throttles or blocks a mailbox that sends too much too fast, and the whole company's email reputation suffers.

EQS puts every outgoing marketing email into one queue for the company. Each salesperson composes and sends as many as they want, from their own account, to their own customer lists. The system sends them in order, pacing the speed and rate so Microsoft never sees a spammer. Emails go out from the sender's own mailbox, so replies land back with the right person.

Sized for

Companies sending up to 10,000 emails a day, which is roughly 7 to 10 salespeople at 800 to 1,000 each.

What it does

  • One company-wide queue, first in first out
  • Send limits and pacing tuned to Microsoft 365, adjustable per tenant
  • Each user sends from their own mailbox with their own signature
  • Sent, pending and failed counts per person and per day
  • Sign-in with the company's Microsoft work account

Built for a distributor in Southern California and deployable for any Microsoft 365 tenant.