Best Mail Servers for Ubuntu

Your customers can enjoy secure, business-level email hosting and other value-added services. This is a great solution for SPs and can be used by thousands to millions of users. You can acquire new customers by offering a premium mail server solution that allows you to automate your existing infrastructure. A secure and powerful mail server allows you to manage your email, share and organize your calendars, and sync your mobile devices. This is the perfect solution for businesses of any size. Axigen is very knowledgeable. Take a look inside to see which hats it has on. You can manage your email and make it easy to get things done with tasks, calendars, and notes. Desktop usability is possible in your browser using keyboard navigation and shortcuts. Drag-and-drop, live email list view, frequent folders. Email filters. Out-of-office messages. Individual blacklist /whitelist.

Open source softwares are the best way to build a mail server. Works on CentOS Stream (Rocket, Alma), Debian, Ubuntu and FreeBSD. You can deploy a FREE, OPEN SOURCE, FULLY FURNISHED, FULL-FEATURED email server in a few minutes. We did all the heavy lifting by combining open source components and applying best practices. Our product takes care of all the major tasks. We also offer professional support in case of any problems. You can control email security and view the transaction log. No one else can read the content of your messages. All components in iRedMail come from open source softwares. You get bug fixes and updates directly from the Linux/BSD vendors you trust. iRedMail allows you to build a mail server using open source softwares.

Email, collaboration, groupware and content management can be set up in minutes on your own hardware or in the cloud. Citadel's exclusive room-based architectural design makes it easy, versatile and powerful. No other platform combines so many features with such ease using this familiar and consistent analogy. Citadel is open source software that uses the GNU General Public License. It's not some crippled version of an expensive "enterprise edition". All the software available here is free and of the highest quality.

In a few minutes you can install a fully-functional mail server, while scripts do the rest of the work. The package is designed to be easy to use, with defaults that are reasonable. This allows you to get up and running quickly without having to learn the internals or make decisions that may break your email system. Binaries and user data are strictly separated. The user database is stored as a SQLite database in a file. Poste.io is therefore fully compatible with external storage. Migration, backups or upgrades are therefore very simple and mainly consist of file manipulation. Poste.io was built with security at the forefront. Internet history is full of painful security incidents. We traded in old email client compatibility for features that are more secure and meet modern security requirements.

Cyrus IMAP serves as an email, calendar and contacts server. Cyrus is open source and free. Features: Speed up Security Efficiency Search Engine CardDAV and CalDAV Support Data storage that is robust Replication Scalable for large installations Sieve provides flexible filtering support Supports anti-spam and antivirus toolkits Handles deliverability: SPF, DKIM, DMARC Cyrus SASL offers a wide range of authentication options JMAP Support List of standards supported