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hMail Server vs OneSignal

Professional comparison and analysis to help you choose the right software solution for your needs.

hMail Server icon
hMail Server
OneSignal icon
OneSignal

hMail Server vs OneSignal: The Verdict

⚡ Summary:

hMail Server: hMail Server is an open-source email server for Microsoft Windows. It allows you to send and receive email using POP3, SMTP and IMAP protocols. Designed specifically for Windows platforms, hMail Server is easy to install and manage.

OneSignal: OneSignal is a push notification service that allows developers to easily send notifications to users of mobile apps and websites. It provides SDKs for all major platforms and has a straightforward dashboard for sending messages.

Both tools serve their respective audiences. Compare the features, pricing, and user ratings above to determine which best fits your needs.

Last updated: May 2026 · Comparison by Sugggest Editorial Team

Feature hMail Server OneSignal
Sugggest Score — —
Category Network & Admin Social & Communications
Pricing Open Source Freemium

Product Overview

hMail Server
hMail Server

Description: hMail Server is an open-source email server for Microsoft Windows. It allows you to send and receive email using POP3, SMTP and IMAP protocols. Designed specifically for Windows platforms, hMail Server is easy to install and manage.

Type: software

Pricing: Open Source

OneSignal
OneSignal

Description: OneSignal is a push notification service that allows developers to easily send notifications to users of mobile apps and websites. It provides SDKs for all major platforms and has a straightforward dashboard for sending messages.

Type: software

Pricing: Freemium

Key Features Comparison

hMail Server
hMail Server Features
  • POP3 and SMTP server
  • IMAP4 server
  • Webmail interface
  • Email aliases
  • Email forwarding
  • Email filtering
  • Anti-virus and anti-spam protection
  • Email archiving
  • CalDAV and CardDAV support
  • Multi-domain hosting
OneSignal
OneSignal Features
  • Cross-platform push notifications
  • Segmentation and targeting
  • A/B testing
  • Analytics and reporting
  • Scheduling and automation
  • In-app messaging
  • Geotargeting
  • Rich media support

Pros & Cons Analysis

hMail Server
hMail Server

Pros

  • Free and open source
  • Easy to install and configure
  • Supports multiple languages
  • Web-based administration
  • Built-in spam and virus protection

Cons

  • Limited scalability
  • Lacks some advanced features of commercial options
  • Requires Windows Server
  • Limited technical support
OneSignal
OneSignal

Pros

  • Free basic plan
  • Easy integration
  • Good delivery rates
  • Flexible segmentation
  • Real-time analytics
  • Well-documented

Cons

  • Limited free plan options
  • No SMS support
  • Lacks some advanced features
  • Can get pricey for high volume
  • Support could be more responsive

Pricing Comparison

hMail Server
hMail Server
  • Open Source
OneSignal
OneSignal
  • Freemium

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Learn More About Each Product

hMail Server
hMail Server
Reviews, pricing & alternatives →
OneSignal
OneSignal
Reviews, pricing & alternatives →

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