Workflow Transactional EmailWorkflow Transactional Email
Install

Shopify Flow Extensions

Transactional email
for Shopify Flow

Send transactional email straight from Shopify Flow. Connect Microsoft 365 or Google Workspace via OAuth, or bring your own SMTP server. Compose messages in a visual editor with full Flow variables.

Install Workflow Transactional Email
Microsoft 365 OAuthGoogle Workspace OAuthCustom SMTPVisual editorFlow-native

How it works

From install to first email in minutes

01

Install the app

One-click install from the Shopify App Store. Free tier includes every channel.

02

Connect your mailbox

Sign in to Microsoft 365 or Google Workspace with OAuth - or paste your SMTP credentials. One screen, reused everywhere.

03

Compose and send

In any Flow workflow, drop the email action, write your message in the visual editor, ship.

Actions

Send mail from Flow, your way

Drop a single action into any Shopify Flow workflow. Your mailbox, your domain, your reputation.

Microsoft 365 + Google Workspace

Connect your business mailbox via OAuth in two clicks. Mail leaves your own domain, with DKIM, SPF and reputation intact.

Bring your own SMTP

Prefer SendGrid, Postmark, Amazon SES, or a self-hosted relay? Add host, port, credentials once - reused across every workflow.

Visual email editor

Compose messages in a block-based editor. Drop in Shopify Flow variables anywhere - no HTML required, no template scripting.

Flow-native, fully variable

Use any payload field from any Flow trigger inside the subject, body or recipient. Branded order confirmations, internal alerts, receipts - all in one place.

HTTP requests to any API

Call any external API from a Flow step: any method, custom headers and body, with Flow data and stored secrets filled in at run time.

Attachments and files

Attach PDFs, images and other files to your emails. Upload once, reuse across templates, delete what you no longer need.

Delivery history

Every send and request is logged with its status. The History page tells you when a template variable came out empty.

Developer API and MCP

Manage senders, templates and requests from your own tools via a REST API and an MCP server, and let Sidekick answer questions about the app.

Pricing

Volume-based pricing, every channel included

Microsoft 365, Google Workspace, and SMTP on every plan. Pay annually and save 8%.

Free

$0/month

Try it out

  • ✓All Actions
  • ✓500 Action Events per month
  • ✓Support via E-Mail or Slack
Install

Starter

$15/month

Small stores

  • ✓All Actions
  • ✓5000 Action Events per month
  • ✓Support via E-Mail or Slack
Install
Most popular

Grow

$35/month

Active brands

  • ✓All Actions
  • ✓15000 Action Events per month
  • ✓Support via E-Mail or Slack
Install

Unlimited

$100/month

Enterprise

  • ✓All Actions
  • ✓Unlimited Action Events per month
  • ✓Priority Access to new beta features
  • ✓Support via E-Mail or Slack
Install

FAQs

What OAuth scopes does the app request?＋
Google Workspace: gmail.send (send email) and gmail.settings.basic (send from your configured send-as aliases). Microsoft 365: Mail.Send, plus Mail.Send.Shared to send from shared mailboxes your account is permitted to use. We never read inboxes, contacts, calendars, or any other content.
Can I use my own SMTP server?＋
Yes. Any SMTP server works - SendGrid, Postmark, Amazon SES, Mailgun, or a self-hosted relay. Add host, port, username, password once. We support TLS and STARTTLS.
Where are emails stored before sending?＋
Composed message metadata and content is transmitted to your chosen provider for delivery. We temporarily log delivery status for debugging. Full details in the Privacy Policy.
Does this affect my domain reputation?＋
Mail goes through your own provider, with your DKIM, SPF and DMARC. Your reputation is yours - we are not in the delivery path beyond handing off to your provider.
Is the app GDPR-compliant?＋
Yes. EU residency, DPA available, no third-party tracking on this site. App is a data processor under your DPA with Microsoft/Google as upstream subprocessors.
Can I call an external API from Shopify Flow?＋
Yes. The HTTP request action sends any method with custom headers and a body to any URL, interpolating Flow data and stored secrets. Responses are logged in History.

Transactional email, straight from Flow

Install free and connect your mailbox in minutes.

Install Workflow Transactional Email