Docker Mailserver vs Gmail (Google Workspace)
Docker Mailserver and Gmail (Google Workspace) are both email server software. Docker Mailserver is open source under MIT, with 20k GitHub stars. Gmail (Google Workspace) is a commercial product from Google.
Which to pick
- Pick Docker Mailserver when
- You want a simple self-hosted mail server without a web admin panel.
- Pick Gmail (Google Workspace) when
- A business wants reliable hosted email with strong spam filtering and works mostly in the browser.
Side by side
A single container mail server with SMTP, IMAP, anti-spam, antivirus and LDAP support, configured by files and environment variables.
Business email on your own domain using Gmail, with spam filtering, shared calendars and admin controls through Google Workspace.
No GUI or webmail, and self-hosted mail brings deliverability and security work.
Moving away later is a chore, and shared mailboxes and delegation are weaker than in Exchange.
Production-ready (both)
Self-hosted server
Cloud service and mobile app
Docker, Postfix, Dovecot and Rspamd
Not published
Open source, MIT (permissive)
Closed source, sold by Google
You can build it into a product you sell, as long as you keep its copyright notice.
Closed source: you use it under the maker's terms and cannot change or resell the code.
20k GitHub stars
90k Wikipedia readers a month on phones
Established: started 11 years ago, latest release v16.0.1.
Not known
Other comparisons
More email servers and webmail
Both sides were judged on 2026-11-03 from makers' descriptions, Wikipedia, READMEs and GitHub data. License, age and popularity lines are worked out directly.