ESP vs. CRM — What’s the Difference?
March 10, 2026
While both platforms provide similar functions, it’s important to keep these two platforms separate, even though it’s helpful to use them in tandem.
It's your weekly dose of clarity and insight on all things tech & business from Dream in Digital! Each week, I'm here to share my thoughts to help you make the most of today's technology and build a business that genuinely supports the life you want to live.
This Week’s Core Focus:
The Difference Between an ESP & CRM
I often hear people using the terms ESP (Email Service Provider) and CRM (Customer Relationship Management) interchangeably. Although both are similar in that you are sending emails to people using these platforms (and sometimes the same platform to do both), the types of emails you send, the audience you’re sending to, and the way that you use each of these platforms is different. Let me explain:
ESP (Email Service Provider): Think of this as your megaphone. Example platforms include: Klaviyo, Mailchimp, Constant Contact, or ConvertKit (now just Kit). Use this to send, track, and manage bulk email marketing campaigns like newsletters and sales drops. It focuses on delivery metrics like opens and clicks. This is Marketing Department work.
CRM (Customer Relationship Management): Think of this as your notebook. Example platforms include: Pipedrive, Salesforce, or HubSpot. Use this to manage comprehensive customer data, interactions, and sales lifecycles across multiple channels. It focuses on detailed profiles, purchase history, and tracking interactions beyond just email. This is Sales Department work.
How to Use Both in Tandem: Use your ESP (megaphone) for high-volume, broadcast messaging, to announce news, share knowledge, and add value to contacts, to turn leads into prospects. Then, use your CRM (notebook) to turn those prospects into clients/buyers by building and tracking personal, specific, long-term relationships across channels.
Tech Tip of the Week:
The Right Tool for the Right Situation
The Problem:
Service-Based Business: I’m trying to build direct relationships, but my inbox is a mess, and I can't remember who I've followed up with.
Product-Based Business: I normally only use an ESP to send broadcast emails for sales, so why do I even need a CRM?
The Solution:
Service-Based Business: Use an ESP to send weekly "top of mind" value-add emails to your contacts. Then, move a person to your CRM the moment they become a prospect, so you can track the sales pipeline and individual history of your interactions with this specific contact to help close the deal.
Product-Based Business: Use your ESP for promotions, announcements, and brand building, but use a CRM to track your "VIP" customers or wholesale partners based on their purchase behavior and lifecycle stage.
How This Helps:
Service-Based Business: This flow allows you to flag interested contacts sooner to increase your prospect pool, and it stops you from losing leads in your inbox.
Product-Based Business: This flow helps you identify your most valuable customers so you can nurture them personally, rather than just blasting your entire list with the same offer.