Email Marketing

MailCheap

1,210310

MailCheap is an open-source newsletter app for writing, sending, and publishing email campaigns, from the dashboard or an AI agent via its built-in MCP server. Self-host it with your own Amazon SES or PostShiba account, or use MailCheap Cloud, which runs the same code. It imports lists from Beehiiv, Substack, and Mailchimp, gives every newsletter its own website, and bakes in deliverability protections like warm-up sending, list cleanup, and Gmail spam-rate monitoring.