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What is Mailu?

Mailu presents a flexible and user-friendly mail server solution, offered through a suite of Docker images, and is built as free and open-source software that actively invites user feedback and contributions. This initiative aims to provide an easily installable and manageable mail server that is both thorough and free from the proprietary tools or extraneous features that are common in many mainstream groupware solutions. Mailu's key features include: A standard email server configuration that supports IMAP, IMAP+, SMTP, and Submission, along with automated setup profiles tailored for various email clients. Advanced email functionalities such as aliases, domain aliases, and customizable routing options to enhance user experience. Web-based access that combines multiple webmail interfaces with a user-friendly administrative dashboard for streamlined management. User-focused features, including the ability to set up aliases, auto-replies, auto-forwarding, and fetch accounts from external servers, ensuring flexibility in usage. Administrative functionalities designed for comprehensive management, allowing for announcements, domain-specific delegation, and quota assignments to maintain control over resources. Strong security protocols that enforce TLS standards, employ DANE and MTA-STS, utilize Let's Encrypt for secure certificates, provide outgoing DKIM signatures, and include an antivirus scanner alongside Snuffleupagus to bolster protection against malware and harmful attachments. Robust anti-spam mechanisms that feature auto-learning algorithms, greylisting techniques, DMARC and SPF support, and strategies to combat email spoofing effectively. In summary, Mailu emerges as a dependable and secure mail server solution, ideal for users aiming for a reliable email environment while maintaining freedom from unnecessary complexities. Its commitment to user feedback and open-source principles further enhances its appeal in the realm of email services.

What is Citadel?

Citadel provides a suite of solutions for email, collaboration, groupware, and content management that can be easily installed on local servers or utilized through the cloud. Its distinctive room-based framework not only enhances user experience but also offers remarkable flexibility and durability. Unlike other platforms, it seamlessly combines an extensive array of functionalities while upholding a consistent and user-friendly interface. Being entirely open source and released under the GNU General Public License, Citadel allows users to access the complete version without any constraints or fees. You can obtain the latest and most sophisticated version from their website, and the most appealing aspect is that it is completely free of charge. This positions Citadel as an outstanding option for anyone in search of robust and inclusive software solutions without the hefty costs typically linked to enterprise software. Furthermore, its commitment to open-source principles fosters a sense of community and collaboration among users and developers alike.

Media

Media

Integrations Supported

Docker
Muraena
Ubuntu

Integrations Supported

Docker
Muraena
Ubuntu

API Availability

Has API

API Availability

Has API

Pricing Information

Free
Free Trial Offered?
Free Version

Pricing Information

Free
Free Trial Offered?
Free Version

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Company Facts

Organization Name

Mailu

Company Website

mailu.io/2.0/

Company Facts

Organization Name

Citadel

Company Website

www.citadel.org

Categories and Features

Categories and Features

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