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Outlook.com vs Roundcube

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

Outlook.com icon
Outlook.com
Roundcube icon
Roundcube

Outlook.com vs Roundcube: The Verdict

Last updated: May 2026 · Comparison by Sugggest Editorial Team

Feature Outlook.com Roundcube
Sugggest Score
Category Online Services Online Services
Pricing Open Source

Product Overview

Outlook.com
Outlook.com

Description: Outlook.com is a free personal email service from Microsoft that offers a simple, ad-supported inbox experience with 15GB of storage. It provides access to Outlook on the web and integrates with Microsoft apps like Word, Excel, and Calendar.

Type: software

Roundcube
Roundcube

Description: Roundcube is an open-source webmail client written in PHP. It is designed to work with IMAP and SMTP servers to provide a full-featured web-based email client. It has support for features like rich text messages, spell check, tagging, filters, keyboard shortcuts and skins.

Type: software

Pricing: Open Source

Key Features Comparison

Outlook.com
Outlook.com Features
  • Email
  • Calendar
  • Contacts
  • Tasks
  • Notes
  • File storage
  • Add-ins and integrations
Roundcube
Roundcube Features
  • Webmail client
  • Works with IMAP/SMTP
  • Rich text editor
  • Spell check
  • Message tagging
  • Filters
  • Keyboard shortcuts
  • Skins/themes

Pros & Cons Analysis

Outlook.com
Outlook.com
Pros
  • Free with generous storage
  • Familiar Outlook interface
  • Integrated with other Microsoft products
  • Ad-free inbox option
Cons
  • Limited customization options
  • No offline access
  • Some features require Office 365 subscription
Roundcube
Roundcube
Pros
  • Open source
  • Feature rich
  • Good IMAP/SMTP support
  • Extendable with plugins
  • Multi-language support
Cons
  • Can be resource intensive
  • Setup can be complex
  • Limited native mobile support

Pricing Comparison

Outlook.com
Outlook.com
  • Not listed
Roundcube
Roundcube
  • Open Source

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