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Email builder for agencies that keeps clients separate

Blocks is an email builder for agencies with several clients to look after. Each client gets a project with their own styles, team and ESP keys. Share a link for sign-off, then export the email to their platform.

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Built for work across clients

  • Every client in a separate project

    Each client’s emails, folders, images and brand styles stay together, and only the people you add can work on them.

  • Your team, client by client

    Invite people by email, even before they have an account, and add them to the projects they work on. Owners and admins manage people and settings.

  • A link for client sign-off

    Press Share and send the link. The client opens the email in a browser without signing in, and you hear back wherever you normally talk.

  • Export to the client’s platform

    Keep each client’s ESP keys in their project. The finished email lands in that client’s account, ready to review and send from there.

Whichever platform your client is on

Blocks exports straight to these platforms.

For any other platform, download the email as HTML or a ZIP archive and upload it there.

How export works: Klaviyo · HubSpot · Salesforce Marketing Cloud

Frequently asked questions

How do I keep clients apart?
Give each client a project. Its emails, folders, images, styles, people and ESP keys stay in that project, and you move between clients from your list of projects.
Can a client approve an email without an account?
Yes. Press Share on the email and send the link. The client opens it in a browser without signing in. Anyone who has the link can open the email, so send it only to people who should see it.
Can my team discuss an email?
Yes. People added to the project leave comments on the email or on a single block, right in the editor.
Can I add a client to the project?
Yes. Invite them by email, and they work in that project like any other member. If the client only needs to approve an email, the link is simpler.
Can two clients use the same platform?
Yes. ESP keys belong to the project, so two clients can use two separate Klaviyo accounts.
Where do campaigns go out from?
From the client’s platform. You export the finished email there, and the campaign is sent from that account.

Add your first client to Blocks

Sign up, create a project for the client and invite your team.

Sign up