Responsive Corporate HTML Email

I’m putting together a professional, corporate-style HTML email and need it to look equally sharp on mobile and desktop in Gmail, Outlook, Apple Mail, and any other major client. The layout should open with a clean header that holds our logo, flow into text sections paired with well-placed images, and finish with a footer that pulls in our social media links.

A prominent “WhatsApp Us” call-to-action button has to stand out and work flawlessly—both visually and functionally—no matter the device or mail service. All links and buttons must be fully clickable, colours and typography must stay on brand, and code has to be lightweight with inline CSS so the message loads quickly and avoids common spam triggers.

To help me sign off quickly, please supply:
• The final HTML file and any referenced images, optimised for fast loading
• A plain-text fallback version
• Confirmation that you tested the build in Gmail, Outlook (Windows and Mac), Apple Mail, and at least one major mobile client, with screenshots or a short report from tools like Litmus or Email on Acid

If you’re experienced with responsive email coding standards—tables, fluid layouts, retina images, and graceful degradation for older clients—this should be a straightforward assignment. Let me know your timeline and any questions you might have so we can get started right away.