MailKite Self-Hosted Programmable Mail Server

Explore this developer service’s ongoing no-cost allowance, restrictions and official documentation before deploying.

INCLUDED FREE ALLOWANCEAGPL-3.0-licensed self-hosted mail server with SMTP inbound/submission, IMAP, reference SQLite backend, REST API and web console; no vendor-imposed software usage quota or expiry.

View official documentation

Plan details

What do these plan and deployment labels mean?

Plan: Ongoing free allowance
Deployment model: Self-hosted
Credit card: Not required
Commercial use: Allowed
Added to directory (UTC): 2026-11-04
Last checked: 2026-11-04

Important restrictions

Pre-1.0 software: reference backend and console are newer than the production SMTP/IMAP edges. Provide your own server, DNS, TLS, storage and mail deliverability; external relays and MailKite Cloud are separate and may cost money. AGPL-3.0 source-sharing obligations apply when modified software is offered over a network.

View official documentation

Independent community listing, not affiliated with the provider. Always check the latest billing policy and quotas before enabling paid usage.