MDaemon
Secure email server and collaboration platform for SMBs
About MDaemon
MDaemon is an email server and collaboration platform that provides secure messaging, webmail, calendars, contacts, and mobile sync for small and mid-sized businesses. It is available as on-premise software for Windows or as a fully managed hosted (SaaS) service, with built-in spam filtering, encryption, and ActiveSync support.
Pros & Cons
Pros
- Flexible deployment with both fully hosted SaaS and on-premise options
- Strong feature set for SMBs without the complexity of Exchange
- Built-in OpenPGP encryption and modern anti-spam (DKIM, DMARC, SPF)
- Native ActiveSync support for mobile and Outlook sync
- Long-established vendor (since 1996) with multilingual support in 25 languages
Cons
- Webmail and admin UI feel dated compared to Microsoft 365 or Google Workspace
- On-premise version requires Windows Server expertise to deploy and maintain
- Add-on licensing (ActiveSync, AntiVirus, Connector) can increase total cost
- Smaller third-party ecosystem and integration library than major cloud suites
Key Features
Hosted Email Service
Fully managed cloud version of MDaemon and SecurityGateway with no servers to maintain and 24/7 monitoring.
Webmail (MDaemon Webmail)
Browser-based email client with calendars, contacts, tasks, notes, and document sharing.
ActiveSync Support
Native Exchange ActiveSync for syncing email, calendars, and contacts to iPhone, Android, and Outlook.
MDaemon Connector for Outlook
Lets Outlook users share calendars, contacts, tasks, and folders without needing Exchange.
Email Encryption
Built-in OpenPGP encryption and signing, plus support for STARTTLS and SMIME for secure email transport.
SecurityGateway
Companion email security gateway with anti-spam, anti-virus, content filtering, and data loss prevention.
Anti-Spam and Anti-Virus
Multi-layered spam filtering with DKIM, DMARC, SPF, greylisting, and integrated AV scanning.
Instant Messaging and Meetings
Built-in XMPP-based IM and integrated video meetings via MDaemon Webmail.
Pricing
- Fully managed cloud email
- Webmail with calendars, contacts, tasks
- ActiveSync for mobile sync
- Built-in anti-spam and anti-virus
- 24/7 monitoring and updates
- Self-hosted on Windows Server
- Unlimited domains
- Webmail and Outlook connector
- ActiveSync (add-on)
- Annual upgrade protection available
- Inbound and outbound email security
- Anti-spam, anti-virus, anti-phishing
- Content filtering and DLP
- Works in front of any email server
Best For
SMB email hosting alternative
Small and mid-sized businesses replacing Exchange or escaping Microsoft 365 per-user pricing with a leaner email platform.
Privacy-conscious email hosting
Organizations that want OpenPGP encryption and full control over data via on-premise or dedicated hosted instances.
MSP and ISP email services
Service providers reselling hosted email and security gateway services using MDaemon's MSP/ISP licensing.
Outlook collaboration without Exchange
Teams that want shared calendars, contacts, and tasks in Outlook via the MDaemon Connector instead of running Exchange.
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