PostMaster
PostMaster: A policy-focused email platform for organizations needing administration, monitoring, and security controls. Ranked #82 of 178 in Email Hosting by our editors (5.3/10); pricing: Free plan · pricing on request · 30-day trial; best for organizations needing monitored, policy-driven email.
At a glance
- Editor score5.3 / 10
- PricingFree plan · pricing on request · 30-day trial
- Best forOrganizations needing monitored, policy-driven email
- Free planYes
- Facts checked20 Sep 2026
Where it wins
- Supports SMTP, POP3, and IMAP mail services
- Combines archiving, monitoring, filtering, and administration
- Includes DLP, PGP/TLS encryption, and two-factor authentication
Where it doesn't
- Web-only access with no listed mobile apps
- Enterprise pricing requires contacting the vendor
- Primarily designed for locally hosted deployments
Our verdict on PostMaster
PostMaster is an email server and management platform for mid-sized and large organizations. It combines SMTP, POP3, and IMAP mail services with browser-based administration, real-time activity monitoring, webmail, and controls for users, groups, domains, and aliases. Organizations can also manage email archiving and search, antivirus and anti-spam modules, attachment controls, and message-size restrictions. Its locally hosted focus suits teams that want direct control over email administration and policy enforcement, while hybrid integration supports organizations combining PostMaster with other email services.
Pricing is structured around vendor contact rather than published plan amounts. The current Enterprise edition is available by contacting QuantumLink Communications Pvt. Ltd., and a free plan and 30-day free trial are listed. Enterprise supports multiple locations and add-on modules for antivirus, anti-spam, archiving, reporting, workflow, and calendar management. The platform also connects with Microsoft Outlook, Microsoft Exchange, Office 365, and Google Apps. Calendar and scheduling capabilities include Outlook integration, giving organizations a path to connect email management with established productivity environments.
PostMaster’s strongest fit is for organizations that need a broad administrative and security layer rather than a narrow mailbox service. Data loss prevention, PGP/TLS encryption, two-factor authentication, archiving, filtering, and monitoring address governance and operational oversight, while hybrid integration can support mixed email environments. The trade-off is a web-only platform centered on locally hosted deployments, so organizations prioritizing mobile applications or a primarily cloud-based approach should consider alternatives. Teams seeking monitored, policy-driven email with multi-location support and detailed administration are the clearest match.
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PostMaster pricing
PostMaster fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Not verified |
| Storage per mailbox | Not verified |
| Email aliases | Not verified |
| Attachment limit | Not verified |
| IMAP/POP support | Yes |
| Mobile app access | Web_only |
| Calendar included | Not verified |
| Migration tools | Not verified |
| Free trial | 30 days |
| Deployment | Cloud, Self-hosted |
| Platforms | Web |
| Compliance & security | 2FA |
| Support | Email, Phone, Docs · 24/7 |
| Built for | Mid-market, Enterprise (editorial estimate) |
| Integrations | 4 integrations: Microsoft Outlook, Microsoft Exchange, Office 365, Google Apps |
| Pricing | Free plan · pricing on request · 30-day trial (source) |
| Website | postmaster.in |
| Facts checked | 20 Sep 2026 |
PostMaster integrations
PostMaster lists 4 integrations on its own site.
- Microsoft Outlook
- Microsoft Exchange
- Office 365
- Google Apps
Alternatives to PostMaster
- Zoho MailA flexible business email suite with a free plan, low-cost entry tier, and migration support.9.4
- Microsoft Exchange OnlineA deep Exchange service for organizations centered on Outlook and administration.9.2
- Google WorkspaceA full Gmail-based collaboration suite for organizations that need more than email.9.1
See all PostMaster alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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