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To create a new blast, click New blast in the top right of the Blasts view.

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1. Choose a starting point

You’ll first be prompted to choose how to start building your email.
Start from a template your team has saved in Conversion. This is useful for emails you send regularly and want to keep consistent.

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2. Build your email

Once you’ve chosen a starting point, you’ll be taken into the Email Builder to design your email.

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3. Configure your blast settings

After designing your email, configure the details of the blast. This includes your audience, sender, subject line, and send time.
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Blast settings

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Delivery overrides

Two optional toggles in the blast settings let you bypass the default sending guardrails. Use them sparingly — they’re intended for transactional or time-sensitive sends, not standard marketing emails.
Set as operational overrides explicit recipient consent. Only use it for emails that recipients must receive regardless of marketing preferences (e.g. password resets, billing notices, account-critical updates). Misuse can violate regulations like CAN-SPAM and GDPR.

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4. Send or schedule

Once your settings are configured, you can either send the blast immediately or schedule it for a future date.
The scheduled date and time use your computer’s timezone. For example, if your computer is set to Pacific Time and you pick 9:00 AM, the blast sends at 9:00 AM Pacific (12:00 PM Eastern).
When the blast is sent out, the email is only sent once to each unique email address in the audience. This means if two contacts in the audience share an email address, the blast is only sent to that email address once.
Before sending, use the Preview and Test send features in the email builder to make sure your email renders correctly across devices and email clients.