---
title: "95,000 Emails in Under 5 Minutes. ContactMonkey's Sending Speed Is in a Different Class."
date: 2026-05-13T21:00:13Z
modified: 2026-05-13T21:01:21Z
permalink: "https://www.contactmonkey.com/blog/sending-speeds-for-internal-comms"
type: post
status: publish
excerpt: ""
wpid: 158914
categories:
  - Product updates
featured_image: "https://www.contactmonkey.com/cm_wp/wp-content/uploads/2026/02/BLOG-THUMBNAIL_30-Fun-Creative-and-Effective-Employee-Engagement-Ideas-and-Activities.png"
author: Cristina Hure
---

When a crisis hits, internal communicators do not get to wait. An IT outage, a safety incident, an executive announcement tied to a market event: the clock is running the moment you hit send. The question is whether your platform can keep up.

ContactMonkey delivers 15,000 to 20,000 emails per minute, which means a company-wide send to 95,000 employees lands in under five minutes.

When the stakes are high, that is the difference between a communication that does its job and one that arrives too late to matter.

Here is what that looks like in practice:

**A critical IT outage:** Systems are down and employees across every department need to know immediately. Every minute of delay means more people trying to log in to something that isn’t working, flooding your helpdesk with tickets that didn’t need to happen. A fast, reliable all-staff send gets ahead of the chaos before it compounds.

**An urgent safety alert:** At a manufacturing plant, a distribution center, or a logistics facility, workers are on the floor and conditions can change fast. A safety communication that takes forty-five minutes to reach everyone isn’t a safety communication. It’s a liability.

**An executive announcement tied to a market event:** Earnings, an acquisition, a leadership change, all of these these announcements are timed for a reason. When delivery is staggered across an hour or more, some employees hear the news from a press release, a colleague, or a news alert before they hear it from leadership. The internal communication loses its purpose before it finishes sending.

**A crisis communication:** Whether it’s a data breach, a public controversy, or an operational failure, how quickly you reach your workforce shapes how they respond. A slow send doesn’t just delay the message, it creates a window where rumor and uncertainty fill the gap your communication was supposed to close.

In each of these scenarios, the difference between a send that takes five minutes and one that takes forty-five is not a technical detail. It is the difference between your communication doing its job and falling short of it.

Reaching your entire workforce at once, with confidence that the first and last recipient get the message within the same window, is no longer a workaround or a best-case scenario. It’s the baseline.

And if you’re a ContactMonkey customer, there’s one more thing to know: to get the full benefit of this infrastructure, your email environment needs to be configured to match. Your sending speed is only as fast as your environment allows.

There are two scenarios worth knowing about before your next large send:

**If you’re sending to your own employees**, Microsoft 365 and Exchange environments need to be configured to receive at high volume. Without the right setup, inbound throttling or filtering can slow delivery on the receiving end, regardless of how fast the message went out.

**If you’re sending to recipients on Gmail, Yahoo, or other external providers**, bulk sender compliance and list hygiene determine whether your messages reach the inbox. These providers have raised their standards for high-volume senders, and meeting them is now the price of entry.

In both cases, the foundation is the same: ContactMonkey needs to be authorized to send on behalf of your domain through SPF, DKIM, and DMARC. With that in place, you get the full benefit of the speed underneath. 

**_Not yet a customer? This is the sending speed your internal communications program has been waiting for. Just_** [**_book a demo_**](https://www.contactmonkey.com/internal-comms-demo)**_to learn more._**

## Topics

**Categories:** [Product updates](https://www.contactmonkey.com/blog/category/product-updates)