How to add audio to an HTML email
· 10 min read
Adding a play button to an email sounds simple. Add an <audio> element, point it at an MP3, and ship it.
Then you open the campaign in Gmail or Outlook and discover the real problem: email clients do not agree on whether the player should render, whether it should play, or whether its fallback content should survive sanitization.
Audio in email can still work well. The safe approach is progressive enhancement. Recipients in supporting clients get a native player. Everyone else gets a clear link to a web version where the audio can play normally.
This guide explains the production pattern we use, why each part exists, and what to test before sending.