Hi Indie Hackers π
I launched RustMailer just 9 days ago β an open-source, self-hosted email API backend written in Rust. It connects IMAP, SMTP, Webhooks, gRPC, and OpenAPI in one seamless API-driven stack.
Hereβs a quick update on how the first week went:


β Reworked IMAP search logic with full condition tree support
β Docker image + quickstart now easier to spin up
β Initial version of the Web UI deployed
β Added Discord Webhook support for new email notifications
βCan I use this to aggregate multiple inboxes into one?β
β Yes, coming soon.
βIβd love to plug this into our CRM as a backend email engine.β
βOpenAPI + gRPC = Dev-friendly. Just what I needed.β
β Give it a star on GitHub: github.com/rustmailer/rustmailer
π Report issues or suggest features
π’ Share it with other devs, Rustaceans, or open-source lovers
π¬ Let me know what you're building and how I can help
RustMailer is here to save you months of email system plumbing. Whether youβre building a CRM, notification service, or SaaS that relies on email, RustMailer gives you full control over the stack β in one powerful Rust-based backend.
Thanks for reading β more blog posts and Discord integrations coming next week!
Cheers! π
β RustMailer Dev