THE EMAIL THEY SHOULDN'T HAVE READ

Summary from the TLDR Dev newsletter

This dev helped Agency B and C transition to an open-source mail stack, angering their current provider, who used hidden clauses in their contract to retaliate. The provider potentially spied on their emails and threatened legal action, preventing the agencies from switching and ultimately raising their costs. Despite the ethical issues, the agencies were unable to break free, showing the challenges of escaping vendor lock-in.