Postmark Inbound has received new code examples for processing JSON data in PHP and Python, thanks to contributions from Joffrey Jaffeux and Jose Padilla. A well-documented PHP mitt is available, along with a similar project for Python, allowing developers to easily process inbound emails. The development of Postmark Inbound is actively supported through various developer documentation resources, including email lists and opportunities for contributors to share their code samples or libraries, which are rewarded with free credits.