Several tools can help you optimize your emails for quick loading:
1. Litmus: This tool allows you to test your emails across various devices and email clients to ensure they load quickly and look great everywhere.
2. Email on Acid: Similar to Litmus, Email on Acid offers testing and optimization tools to improve your email load times and overall performance.
3. AMP for Email: Accelerated Mobile Pages (AMP) can be used to create fast-loading, interactive emails. Although still gaining traction, AMP for Email can significantly enhance the loading speed and interactivity of your emails.