The original title is "AgentMail joins the Vercel Marketplace" which is 5 words. It's already short and specific. Let me check the rules:

Short summary

AgentMail is now available on the Vercel Marketplace, letting developers provision real inboxes for AI agents that can send, receive, and respond to email. The service handles mail servers, deliverability, threads, and attachments, with API support for custom domains. Agentic workflows can be triggered via webhooks and WebSockets, making it straightforward to add email capabilities to AI agents deployed on Vercel.

• •AgentMail now installable via Vercel Marketplace or Vercel CLI
• •Provides real inboxes for AI agents with thread, attachment, and deliverability handling
• •Supports custom domains via API and workflow triggers through webhooks and WebSockets

Generated with AI, which can make mistakes.