Ensure image quality.
Our image validation process performs a detailed inspection of all embedded and linked images within your email, verifying file formats, dimensions, accessibility, and attribute configurations. Each image is analyzed for type, declared size, and reference validity to ensure compliance with HTML email rendering standards. This step also checks for missing or malformed attributes such as src, alt, width, and height, which are essential for accurate and accessible display.
Validation extends across major email clients and webmail rendering engines, assessing how each client interprets embedded, CID-referenced, or externally hosted images. The system evaluates compatibility with secure content policies, fallback behaviors for blocked images, and the impact of scaling or compression on layout stability.
