Email by MESA

The Email by MESA app allows you to trigger a workflow by sending an email after a step has occurred within a workflow. You can customize the email by using Variables.

🗒 Note: Email by MESA is a premium app. Premium apps are double the fun, double the automation. When a workflow with a Premium app runs a single automation, MESA counts it as two automations. Learn more

Email Action

The example above, from our Cancel high-risk orders template, will send an email notification to the store owner about a risky transaction. 

Use commas in the Recipient field to specify multiple recipients. If HTML code is detected in the Message field, a formatted email will be sent. If no HTML tags are detected in your Message, a plain text email will be sent.

Improving Deliverability

If you are running into issues with your emails not getting delivered, or ending up in your SPAM folder, especially when your domain has DKIM records configured, we recommend setting leaving the  From email address blank. This will send your emails from  We recommend setting the Reply To email address to whichever email address you would like to receive replies to your email. This field defaults to your store's contact email address set in Shopify.


  • The built-in Email app does not allow you to add custom SPF, DKIM, or DMARC records to your domain name's DNS record, which helps improve email deliverability.  If you would like to use these features, we recommend using MESA's Mailgun app.
  • File attachments can not be added to this step.

Email Trigger

With the Email Trigger, you can trigger a workflow by sending an email to a custom MESA email address. The information (Email Subject, Message, and Sender) sent to the custom email address can be used as MESA variables in your later workflow steps.