docker-mailserver vs wildduck
| Tagline | Production-ready, config-driven mail server in a single container | Scalable, horizontally distributed IMAP/POP3 mail server with no single point of failure |
| Category | Email & Newsletters | Email & Newsletters |
| Replaces | Gmail / Google Workspace | Gmail / Google Workspace, SendGrid, Mailchimp |
| GitHub stars | 18k | 2.1k |
| Language | Shell | Nodejs |
| License | MIT | EUPL-1.2 |
| Self-host difficulty | 4/5 Involved | 5/5 Advanced |
| Deploy options | Docker Docker Compose Manual | Docker Manual |
| Managed hosting | ||
| Last updated | 8 days ago | today |
| View repo | View repo |
Where each falls short
The honest trade-offs — what you give up with each, versus the proprietary tools they replace.
docker-mailserver
- No admin web UI — all config is via files and the CLI
- No bundled webmail or groupware (calendar/contacts)
- Deliverability, DNS, and TLS setup are entirely your responsibility
- Not a newsletter/marketing tool — mailboxes only
wildduck
- No built-in web admin UI; management is done through a JSON HTTP API only
- SMTP is a separate component (Haraka/ZoneMTA) requiring additional setup
- MongoDB dependency adds operational overhead compared to simpler SQL-backed servers
- Documentation assumes strong Node.js and MongoDB expertise
Bottom line
Choose docker-mailserver if you want the lower-effort setup; choose docker-mailserver for the larger community and ecosystem. wildduck has seen more recent development. Open each guide below for deploy steps and the full feature gap.
docker-mailserver
Production-ready, config-driven mail server in a single container
wildduck
Scalable, horizontally distributed IMAP/POP3 mail server with no single point of failure