Email Service Provider (ESP)

What is an ESP?

An Email Service Provider or ESP is a software that allows you to send emails to a subscriber’s list.-

Historically, this was the only function an ESP was doing. They have now evolved to fully-fledged marketing automation tools including features like CRM, landing pages, SMS and more.

Here are some ESP:

• ActiveCampaign
• Sendinblue
• Klaviyo
• Constant Contact
• MailChimp
• Drip
• Converkit

You can see the full list of email service providers.