Courier
The Courier mail transfer agent (MTA) serves as an integrated mail and groupware server, supporting ESMTP, IMAP, POP3, and more through a unified framework. It offers fle... The Courier mail transfer agent (MTA) serves as an integrated mail and groupware server, supporting ESMTP, IMAP, POP3, and more through a unified framework. It offers flexible component management, web-based calendaring, and can operate on various POSIX systems. With robust mailing list management and spam filtering capabilities, Courier ensures secure and efficient email handling.
Top Courier Alternatives
Mercury Mail Transport System
The Mercury Mail Transport System functions as an efficient mail server, managing incoming and outgoing emails for users within a...
Dovecot Pro
Dovecot Pro stands out as a premier email backend, chosen by leading Telcos, ISPs, and Hosters. Its innovative Palomar architecture...
Horde
The latest release of Horde Groupware enhances usability with a fresh design and improved mobile support, allowing seamless access to...
mailcow
mailcow is a user-friendly, open-source groupware and email suite built on Docker, leveraging established components for a seamless email server...
Exim
Exim is a versatile mail transfer agent (MTA) designed for Unix-like systems, offering robust mail routing and extensive incoming mail...
iRedMail
Deploying a full-featured, open-source mail server takes mere minutes with this solution, which integrates essential components and best practices. Users...
Dovecot
Dovecot Pro is a powerful email server platform designed for dynamic scalability and high performance. It optimizes hardware utilization and...
Mailu
Mailu offers a robust mail server solution through a collection of Docker images, emphasizing simplicity and user-centric features. It supports...
qmail
qmail is a robust message transfer agent designed for secure, reliable, and efficient email delivery. Its unique straight-paper-path philosophy ensures...
Citadel
Citadel is an innovative platform that enables seamless email, collaboration, groupware, and content management tailored for both local hardware and...
Oracle Communications Messaging Server
Designed for service providers and their customers, Oracle Communications Messaging Server ensures high-capacity and reliable message handling. It supports multiple...
Cyrus IMAP
Cyrus IMAP serves as a robust email, contacts, and calendar server, renowned for its speed and security. It supports CardDAV...
Scalix
Scalix offers a premium Outlook experience tailored for small businesses, featuring push email, PIM, and collaborative tools like group calendaring...
Zentyal
Zentyal serves as an effective alternative to Windows Server®, seamlessly integrating with Microsoft Active Directory® without disrupting users. It provides...
hMailServer
hMailServer serves as a robust, free, and open-source email server designed for Microsoft Windows. It efficiently supports essential email protocols...
Company Information
- Company: Double Precision, Inc.
- Country: France
Top Courier Features
- Integrated mail/groupware server
- Supports multiple protocols
- Web-based administration interface
- Enables/disables components easily
- Native Maildir storage format
- Basic web-based calendaring
- Advanced groupware calendaring forthcoming
- Compiles on POSIX systems
- Supports LDAP databases
- Spam filtering implementation
- Automatic domain blacklisting
- Rejects malformed messages
- Configuration through plain text files
- Qmail-style address aliases support
- Sends delivery status notifications
- Manual for installation included
- Local mail delivery agent optional
- Supports virtual mail accounts
- Efficient local mail delivery
- Closed mail relay by default
