WildDuck – Self-hosted modern email server
WildDuck is a scalable no-SPOF IMAP/POP3 mail server
WildDuck – Self-hosted modern email server launched on May 10, 2019 with 222 votes, #82 of 3,072 launches that month and more than 95% of that year's launches. The site was still online in September 2026, 7 years on.
In plain words
WildDuck is a self-hosted email server designed for developers and organizations wanting to run their own mail infrastructure. It offers modern features and full control over email operations, with users managing the complete system on their own servers. The software launched in 2019 and is built for technical teams requiring independence from third-party email providers.
written from the facts on this page · September 2026
From the sources
WildDuck is a modern IMAP/POP3 server built on Node.js and MongoDB. Bundle it with Haraka (inbound SMTP) and ZoneMTA (outbound SMTP) for a complete mail server. Best suited for 1000+ accounts that need horizontal scaling. For smaller setups, consider Postfix+Dovecot . Everything is stored in MongoDB with sharding support. All instances are stateless — add more behind a load balancer to increase throughput. First-class IMAP4rev1 with IDLE, CONDSTORE, COMPRESS, SPECIAL-USE, UTF8, QUOTA, and more. Any email client should work out of the box. Full support for internationalized email addresses, folder names, and headers. андрис@уайлддак.орг is a valid address. Manage everything via REST API —…from wildduck.email
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