Mailcow
App in the BluixApps catalog
What it is
Mailcow is a complete self-hosted mail server stack — Postfix, Dovecot, Rspamd, SOGo webmail, ClamAV, all preconfigured and managed via web UI. Designed for users who want their own mail server without spending weeks tuning Postfix configs.
For self-hosters and small businesses running their own mail, Mailcow is the path of least resistance.
What it's for
- Self-hosted email — full mail server (SMTP + IMAP + webmail)
- Multi-domain hosting — host email for multiple owned domains
- Mailbox management — create/manage user mailboxes via UI
- Anti-spam + anti-virus — Rspamd + ClamAV integrated
- CalDAV / CardDAV — SOGo for calendar + contacts sync
Who it's for
- Privacy-conscious individuals running personal email
- Small businesses wanting on-prem email vs Google Workspace
- Agencies hosting email for clients
- Tech enthusiasts self-hosting full personal infrastructure
- Privacy-bound orgs under data residency mandates
Why teams pick Mailcow over alternatives
- GPLv3 — fully open
- Complete stack — Postfix + Dovecot + Rspamd + SOGo + ClamAV preconfigured
- Web UI — manage everything visually
- Multi-domain — host email for many domains in one instance
- Active development — frequent releases
- DKIM / SPF / DMARC — modern email auth built in
Integrations
- Webmail — SOGo (full-featured) included
- CalDAV / CardDAV — SOGo serves calendar + contacts
- Mobile — IMAP / SMTP works with all native clients
- Anti-spam — Rspamd with Bayesian filtering
- Anti-virus — ClamAV scanning
- Backup — supplied backup script
- Two-factor auth — TOTP for webmail + admin
Notable users & community
- 10k+ GitHub stars
- Used by small businesses, agencies, privacy-conscious self-hosters
- Active community on forums + Telegram
- Backed by Servercow (DE) — sustainable European OSS company
- Featured in self-hosted email guides
Tips & operations
- Reverse DNS (PTR) record required — mail providers reject mail from servers without PTR
- SPF + DKIM + DMARC — set up correctly or your mail goes to spam
- Don't run on cheap VPS — many cloud providers block port 25; check before deploying
- Backup all volumes — multiple data stores; use Mailcow's backup script
- Bounce monitoring — set up logs / alerts for delivery failures
- TLS only — SMTPS + IMAPS only; disable plain protocols
What we ship in BluixApps
- Docker compose: Mailcow full stack (Postfix + Dovecot + Rspamd + SOGo + ClamAV + others)
- Pinned
mailcow:2024-11(release-tagged) - HTTPS via Let's Encrypt for webmail + admin UI
- Admin user via env config
- DKIM + SPF + DMARC documented in install report
- Persistent volumes for all mail data
- Backup hook uses Mailcow's native backup script
Get this app — pick a BluixApps plan
Same catalog. Scaling tenant isolation, white-label and support tier.
| Tier | Tenants | Catalog | Support | White-label | Monthly | |
|---|---|---|---|---|---|---|
| Stacks | 1 | 19 curated stacks | Standard | — | $19/mo | DetailDeploy |
| Starter | 10 | Full catalog | Standard | +$15–25/mo | $49/mo | DetailDeploy |
| Pro | 25 | Full catalog | Priority bugfix | +$15–25/mo | $149/mo | DetailDeploy |
| Growth | 100 | Full catalog | Priority bugfix | +$15–25/mo | $349/mo | DetailDeploy |
| Scale | 500 | Full catalog | 7-day window | +$15–25/mo | $799/mo | DetailDeploy |
| Enterprise | Unlimited | Full catalog | Priority 7-day | Bundled | $1,499/mo | DetailDeploy |