Buttondown Documentation
Test mode is a feature that allows you to send all newsletter emails to yourself instead of your actual subscribers. This is useful for testing email layouts, checking how emails render across different clients, or previewing how your newsletter will look before sending it to your full list.
When test mode is enabled:
[TEST MODE]
to help you identify test emailsTo enable test mode for your newsletter:
When you receive a test mode email, you'll see:
A prominent red banner at the top of the email showing:
Your email subject will be prefixed with [TEST MODE]
to help you identify test emails in your inbox.
Test mode emails include a header section showing the same information as the HTML version.
Test mode is particularly useful for: