A mass email sends one email to every contact on one or more Contact Lists or a saved filter view, with each recipient's information merged into the template so it can greet them by name and personalize other fields. This article covers how to send or schedule a mass email using a Contact List and Email Template you already have set up.
What You'll Need First
This article assumes you already have a Contact List and Email Template ready to go.
Contact List - see How to Import Contacts or How to Manage Contact Lists.
Email Template - see Getting Started With the HTML Builder or How to Build a Text-Based HTML Email Template.
First time sending and starting from scratch? See Getting Started Sending Newsletters for a full walkthrough covering list setup, template creation, and your first send.
How to Send a Mass Email
You can start a mass email from the + button in the navigation bar, from Contact Lists, or from the Mass Emails page, which each open the Send an Email page. Starting from Email Templates first asks you to choose the Contact Lists, then opens the same page.
Click the + button in the upper right corner of the navigation bar.
Select Mass Email.
Under Who is it going to?, choose Contact lists or Filter view.
Select one or more Contact Lists, or a saved contact view.
Under Your email, choose a template from Start from a template (optional), or write the email from scratch.
Review the Subject and Content, and make any final edits. Edits made here are one-time and do not update the saved template unless you click Save as template.
Click Send test to me to preview the email in your own inbox before sending.
Click Send now.
Click Send Mass Email to confirm.
The panels on the right update as you build the email:
Recipient preview - lists everyone the email will go to. Uncheck a person to leave them out.
Save these recipients as - appears when the send creates a new recipient group: a filter view, more than one Contact List, or a send with people unchecked. The group is kept in Contact Lists under Send Filters.
Check your email - shows your email reputation, how many people the email is going to, how many addresses were verified recently, and when it sends.
How Do I Verify Addresses Before Sending?
This option is in the Check your email panel on the Send an Email page.
Check Verify the [number] unverified addresses before sending.
Click Verify, then send.
The email waits until verification finishes (usually minutes, up to 12 hours), then skips any undeliverable addresses.
Email verification is an Enterprise feature (included in FSE).
How Do I Schedule a Mass Email for Later?
Under When should it go?, click a time such as In 1 hour or Tomorrow 9 AM, or click Pick a date and time and choose a date and time.
Click Schedule for [date and time].
Your scheduled mass emails can be managed / viewed on the Scheduled email page: Communication > Email > Scheduled
When Should I Use Advanced Mass Email Instead?
Advanced Mass Email sends one email per minute on a defined schedule instead of all at once, which is recommended for new or unverified lists.
Under When should it go?, turn on Send 1 per minute. The sending hours window opens.
Set the sending window for each day.
Click Save.
To reopen the window later, click Choose sending hours. See How to Send an Advanced Mass Email.
How Do I Check on a Mass Email After Sending?
Every mass email you send appears on the Mass Emails page, where you can track delivery, opens, clicks, and issues like bounces and unsubscribes. See How to Use the Mass Emails Page.
Key Notes
The Going to count reflects contacts who are active for emailing, not the total list size. Bounced, unsubscribed, and suppressed contacts are excluded automatically.
A contact on more than one selected Contact List receives the email once.
Verifying addresses before sending is an Enterprise feature, with 10,000 verifications per account each month. The Check your email panel shows how many are left and when they reset.
Once a mass email is scheduled, changes made to the template after scheduling will not affect what goes out. To edit the template for a scheduled email, go to the Scheduled page and edit the scheduled email.
For deliverability guidance beyond the mechanics of sending, see Mass Emailing Best Practices.