Glossary · Marketing, CRM & Growth
SendGrid
Overview
What SendGrid is
SendGrid, now part of Twilio, is a cloud-based email delivery platform. Applications and marketing tools connect to it through an API or SMTP to send email reliably at scale, both transactional messages like password resets, receipts, and booking confirmations, and marketing campaigns to subscriber lists. It handles the heavy lifting of getting mail accepted by inbox providers.
What it provides
Beyond raw sending, SendGrid offers deliverability infrastructure: authenticated sending domains, dedicated or shared IPs, bounce and spam handling, and reputation monitoring. It adds email templates, a drag-and-drop marketing campaign builder, contact lists, and detailed analytics on delivery, opens, clicks, and unsubscribes, plus webhooks so your systems know what happened to each message.
Why it matters for automated outreach
Most automations depend on email actually arriving. SendGrid is a common backbone for instant lead response, lead nurture sequences, database reactivation, and booking and no-show reminders, sending each message the moment a workflow triggers. Because it reports delivery and engagement per message, it also plugs into CRM automations, like Pipedrive, so sales sees what a contact received and opened.
Where we use it
Related Zen in Tech services
How our team puts SendGrid to work in real projects.
FAQ
SendGrid — common questions
Is SendGrid free?
SendGrid offers a free plan that allows a limited number of emails per day, suitable for testing and very low volume. Paid Essentials and Pro plans raise sending limits and add features, with pricing that scales by monthly email volume.
SendGrid vs. Mailchimp?
SendGrid is developer-focused and strong at transactional email and high-volume API sending, while Mailchimp is a marketing-first tool built around campaigns, audiences, and templates for non-developers. Product and app teams often choose SendGrid; marketing teams often start with Mailchimp.
What is SendGrid used for?
SendGrid is used to send both transactional email, such as receipts, password resets, confirmations, and reminders, and marketing email from apps and automations, with the deliverability tooling needed to reach the inbox reliably at scale.
Need SendGrid done right?
Book a free consultation and we’ll map the fastest, most cost-effective path for your project.
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