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What is SendGrid?

SendGrid is a service that helps websites and apps send emails to their users. It is handy for businesses and developers who want a reliable way to send emails, like signup confirmations or newsletters, to their users.

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How it works

1

Link your Fillout form to SendGrid

Open your form. Click Integrate from top followed by SendGrid.Screenshot 2025-11-17 at 4.48.40 PM.pngEnter your API Key in Fillout. You can find this in the Settings section of your SendGrid dashboard. Create API Key on the upper right corner. Enter a Name, then go with the default Full Access permission.Screenshot of the Fillout form creation page
2

Choose to send email with template

If you don’t have a template on SendGrid yet, select Email API on the left-hand panel followed by Dynamic Templates and Create Dynamic Template.Screenshot 2025-11-17 at 4.58.43 PM.pngClick Add Version and start with a blank template or choose a SendGrid Email Design. Customize your email template as you see fit.Screenshot 2025-11-17 at 5.00.32 PM.png
3

Map your form fields

On Fillout, link your form fields to the corresponding fields in your SendGrid contacts. For example, link the email address to its respective field. Then, fill out the Sender identity section.Screenshot of the Fillout form creation pageYou can personalize emails, by inserting dynamic data under Template variables. For example, we want the “Name” to change depending on the customer’s name. Once everything is set, click Finish setup.
4

Publish and share

Once you’ve finished creating your form, you’re ready to go! Simply Publish and share the link. Respondents will now receive the email template.
SendGrid’s Free plan lets you send up to 100 emails per day, while the Essentials paid plan lets you send up to 50,000 emails per month.

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Send a freeform email

You can also send a plain custom-formatted email by choosing Send email without template and entering the recipient and sender details. Reference form fields by clicking or typing @. Screenshot of the Fillout form creation page

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Add or update contact information

Skip sending an email and simply Add or update contact. Choose a List in your SendGrid account. Then, link the Email address field and + Add new Contact fields as you see fit. Map the SendGrid fields on the left to their respective Fillout fields on the right. Screenshot of the Fillout form creation page

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Specify a condition

If necessary, you can run your integration only when a specific condition is met. Click here to learn how to.

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Personalize your email in Sendgrid

You can use handlebars in Sendgrid to pipe a respondent’s information in the notification email. For example, we’ll personalize the email by adding the respondent’s name. Simply type {{ name }} anywhere on your email. Screenshot of the Fillout form creation page When a respondent completes your form, they will be receiving a personalized email like the one below. Screenshot of the Fillout form creation page

Integration logic

Perform an integration only when a certain condition is met.

Calculations

Calculate prices for order forms, compute quiz scores, and more.

Send messages with Twilio

Automate SMS updates to customers.