Summary: Resend adds massive social proof and SDK support

Why It Matters: The competitor is significantly strengthening its credibility with a large volume of customer testimonials and making it easier for developers to switch by supporting more programming languages and frameworks.

What Changed:

• Added a massive section of customer testimonials from founders and engineers at companies like Vercel, Infisical, and Mintlify.
• Expanded the "Integrate this morning" section to include a wide range of SDKs and frameworks including Ruby, Python, PHP, Go, Rust, Java, Elixir, .NET, Next.js, Remix, and Nuxt.
• Added a new site navigation menu with links to Pricing, Resources, and Help.
• Included a comprehensive footer with links to a company handbook, security documentation (SOC 2, GDPR), and migration guides.
• Added specific feature callouts for Intuitive Analytics, Full Visibility, and Domain Authentication.