For CRM and lifecycle teams

The email CMS for marketing teams.

Build every campaign and flow email from locked modules with editable content fields, then export clean HTML to Klaviyo, Braze, Salesforce Marketing Cloud, Iterable, or any ESP.

Book a demo Try the editor
Modular Mail editor showing a campaign built from locked modules and editable content fields
Works with your ESP

Keep your ESP,
upgrade how you build

Export clean HTML and drop it into the platform you already send from. No integrations, no vendor lock-in.

  • Mailchimp
  • HubSpot
  • Salesforce
  • Klaviyo
  • Constant Contact
  • ActiveCampaign
  • Marketo
  • Braze
  • SendGrid
  • Campaign Monitor
  • Pardot
  • Iterable
  • Bloomreach
  • Customer.io
  • Mailgun
  • iHotelier
  • any platform that sends HTML email
The problems

Every content team has a CMS. Except the email team.

  1. 01

    Stuck with generic templates

    Your ESP's drag-and-drop builder is fine for basics, but the emails look like everyone else's. Custom designs mean HTML and dev support.

  2. 02

    Waiting on technical help

    Every campaign needs someone technical to set up, tweak, or fix. You're stuck in a queue, waiting for changes that should take minutes.

  3. 03

    Afraid to touch the code

    Maybe you have HTML templates, but you're scared to edit them. One wrong click and the layout breaks, mobile is ruined, or Outlook gives up entirely.

Modular Mail solves this. Developers define the structure; marketers fill in the content.

How it works

Ready to use from day one.

Templates are configured for your team by us, your agency, or your developer. After that, your team owns the content.

1. Your templates, set up as a CMS

Send your existing HTML, Figma files, or brand guidelines. We convert them into modules with defined content fields, the same way you'd configure a CMS theme. Your team logs in to a working system on day one.

  • Configured by us, your agency, or your developer
  • Custom builds quoted on complexity
  • Brand guidelines baked into every module
Modular Mail template setup converting an HTML file into reusable modules

2. Your team manages content

Marketers see content fields (text, images, links, CTAs), not HTML. They select modules, fill in fields, reorder sections, and preview. It's content management, not code editing.

  • Drag and reorder modules
  • Fill in text, images, links, and CTAs
  • Preview desktop and mobile as you edit
  • AI Copy Assistant for any text field
  • AI alt text on every image upload

3. Export to any ESP

Export production-ready HTML and upload it to Mailchimp, Klaviyo, HubSpot, Salesforce, or wherever you already send from. Modular Mail is a CMS, not an ESP. Use the platform you want.

  • Works with the ESP you already use
  • One-click HTML export
  • Send tests to Litmus, Email on Acid, etc.
HTML export panel showing destination ESP options
Why an email CMS?

A category built for teams that send often

An email CMS isn't an ESP and isn't a builder. It's the layer that keeps templates protected and campaigns fast.

Structure protected, content flexible

The template's layout, fonts, and spacing are locked. Content fields (text, images, links, CTAs) are open. Marketing edits what should change and nothing that shouldn't.

ESP-agnostic by design

An email CMS manages content, not sending. Export clean HTML and upload it to Mailchimp, Klaviyo, Salesforce, or any platform you already use. No integrations, no lock-in.

Developers set up, marketers ship

A clear separation of concerns: your developer or agency builds the template, your team runs the campaigns. Every role does the work it's best at, nobody is the bottleneck.

Brand consistency, enforced

Colours, fonts, and spacing live as tokens inside the template. Every campaign inherits them automatically, so the brand holds up across hundreds of sends without anyone policing it.

Learn more about email CMS
Who it's for

Teams who need professional email without the technical overhead

Marketing teams without developers

You don't need a developer to publish a blog post. You shouldn't need one to send a campaign. Once the structure is set up, your team owns the content.

  • Configured by us, your agency, or your developer
  • Your team builds campaigns without HTML
  • No more dev queue for content changes

Agencies handing off to clients

You build templates for clients, then watch them get edited badly. With Modular Mail, your structure stays protected and the client edits content fields. Set up templates once; let clients self-serve. See how agencies use Modular Mail.

  • Build the client's library once
  • Clients self-serve campaign creation
  • Your work stays intact

Teams with templates they can't use

You've got perfectly good HTML templates sitting unused because nobody can edit them safely. Modular Mail makes them editable without rebuilding anything.

  • Use existing templates without a rebuild
  • Marketing edits content, design stays locked
  • Brand-safe output every time
We used to wait three to five days for dev to update our email templates. Now my team builds campaigns in an afternoon. Same custom designs, zero technical dependency.
Hin Shah Head of CRM · Dr. Barbara Sturm
FAQ

Frequently asked questions

Everything you need to know to get started.

  1. Do I need a developer to use Modular Mail?
    Not for day-to-day work. Template setup is handled by us, your agency, or your developer. After that, your marketing team builds campaigns without any technical knowledge.
  2. What if I don't have email templates yet?
    We build them. We offer professional template development from your brand guidelines or reference designs, and Figma to HTML email conversion. Pricing is project-based. Get in touch for a quote.
  3. How is this different from Stripo, Beefree, or Mailchimp's builder?
    Email builders give you full creative freedom on every campaign, but that means anyone can break the design. Modular Mail is a CMS: the structure is locked, the content is editable. Use a builder when you want freedom; use a CMS when you want consistency.
  4. Can I add new modules later?
    Yes. Your developer can build new modules at any time, or we can build them for you. Product launches, seasonal campaigns, anything bespoke: your template system grows with you.
  5. How does AI fit in?
    AI is built in but kept on a leash. The AI Copy Assistant generates and refines text in any field with quick actions (Rephrase, More concise, More urgent). AI Alt Text writes accessible image descriptions in one click. Both are bound to your brand voice and restricted-term rules, so suggestions stay on-brand by default.
  6. Does it work with my ESP?
    Yes. Modular Mail is ESP-agnostic. Build campaigns in the editor, export production-ready HTML, upload to Mailchimp, Klaviyo, HubSpot, Salesforce Marketing Cloud, or any platform that accepts HTML. No integration required.
  7. How long does setup take?
    For a straightforward template, most teams are live within one to two weeks. That includes converting your HTML or Figma designs into modules, configuring content fields, and training your team. More complex template libraries take longer; we'll scope it upfront.
  8. What does it cost?
    Pricing has two parts: a one-off setup fee for building your template system, and a monthly subscription for the platform. Setup is quoted on the complexity of your templates. Get in touch for a quote tailored to your programme.
  9. Can multiple people on my team use it?
    Yes. Workspaces support your whole team with role-based permissions. Admins manage templates and brand settings; editors build campaigns. Every change is versioned, so you can see who edited what and roll back if needed.
Get started

Build on-brand campaigns. Skip the dev queue.

See how Modular Mail works for your team.

Book a demo Get in touch