Mail Servers

Gmail
Free • Proprietary
WebMail Provider
Email Client
Mail Server
Online
Android
iPhone
Chrome OS
Android Tablet
iPad
Google Chrome
Android Wear
Android TV
Software as a Service (SaaS)
81 alternatives to Gmail
Gmail is a free search-based web-mail service. It offers a full featured web-based email client with search capabilities, a mailbox with Pop and IMAP access, SPAM protection, display of email threads as conversations, a labeling and filtering system, an integrated chat, 15 GB of...
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Gmail Features
1. Multiple Account supportGmail support multiple accounts without the need to logout and login
2. Email OrganizerGmail allows you to take control of your inbox by filtering and control tools.
3. Works OfflineGmail can be used without the need to connect to the internet.
4. Mail FilteringGmail classifies email messages according to specified criteria, allowing you to automatically recognize fraudulent or spam messages.
5. IFTTT IntegrationYou can connect different services to automatically trigger actions within Gmail using IFTTT.
6. Unified inboxView e-mails (or similar) from all accounts in one unified view with Gmail.
Integrated Search
Integrated Chat
Basic html mode
Custom Backgrounds
Outlook integration
Canned responses
Emoji Text support
Email deliverability
Integrated Spam Protection
Threaded Conversations
Top 3 alternatives
Mailbox.org
Paid • Open Source
WebMail Provider
Email Client
Calendar App
Online
70 alternatives to Mailbox.org
Mailbox.org offers a secure e-mail account for home and business use. The domain name, me@mailbox.org, is easy to remember and can be understood anywhere in the world. They have been operating e-mail accounts for more than 20 years and are a highly reliable service provider.
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Mailbox.org Features
1. Privacy focusedMailbox.org is considered a privacy friendly alternative.
2. PGP EncryptionMailbox.org supports PGP, an encryption system used for sending encrypted emails and files.
3. No TrackingMailbox.org will not track you or use your personal data.
4. Calendar IntegrationMailbox.org lets you sync your tasks and events with your calendar application.
5. Automatic BackupMailbox.org will automatically back up your data periodically.
6. Two-factor AuthenticationMailbox.org supports two-factor authentication (2FA).
7. Spam FilterMailbox.org can detect unsolicited, unwanted and virus-infected emails, calls, files, etc.
8. Real time collaborationMultiple users can work together in Mailbox.org simultaneously.
9. Support for AliasesMailbox.org supports aliases, so you can receive email without exposing your main email address
Custom Domain
Encrypted Email
Built-in Calendar
IMAP Support
File Storage
Contacts
CalDAV Support
CardDAV Support
Support for SFTP
Supports XMPP
Top 3 alternatives
Google Workspace
Paid • Proprietary
Mail Server
Team Collaboration Tool
Calendar App
Mac
Windows
Linux
Online
Chrome OS
49 alternatives to Google Workspace
Google Workspace (formerly Google Apps for Work / G Suite) is Google's encompassing selection of cloud apps for business, including customizable products under custom domain names. It features traditional office tools through Google Docs as well as communication and time...
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Google Workspace Features
1. Sync with Google CalendarGoogle Workspace can be synchronized with Google Calendar
2. Two-factor AuthenticationGoogle Workspace supports two-factor authentication (2FA).
Online collaboration
Google contacts integration
Sync with Google Drive
Google Sheets integration
Integrated Bulk Emailing
Top 3 alternatives
Cloudron
Freemium • Proprietary
Server Management Tool
Web Hosting Service
Linux
Online
Self-Hosted
52 alternatives to Cloudron
Cloudron is a complete solution for managing apps & users on your own server. Easily deploy production ready apps from the app library and keep them automatically up-to-date. It even comes with a built-in email server and web clients!.
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Cloudron Features
Auto Update
Simple installation
Platform as a service
VPS Hosting
Variety
LDAP Services
Personal Information Manager (PIM)
Automated deployment
Top 3 alternatives
MailDrop
Free • Open Source
Disposable Email Service
WebMail Provider
Online
119 alternatives to MailDrop
MailDrop is a free throwaway e-mail address. It's temporary. It's transient. It's disposable. It's meant for those times when you don't want to give out your real address. Just give someone any e-mail address in the maildrop.
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MailDrop Features
1. Support for AliasesMailDrop supports aliases, so you can receive email without exposing your main email address
Top 3 alternatives
Fastmail
Paid • Proprietary
WebMail Provider
Calendar App
Mail Server
Online
Android
iPhone
Android Tablet
iPad
61 alternatives to Fastmail
Fastmail provides one of the most secure and reliable email environments in the industry. Rock Solid Reliability. More safety.
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Fastmail Features
1. Support for AliasesFastmail supports aliases, so you can receive email without exposing your main email address
2. Ad-freeFastmail doesn't contain any form of external advertising.
Integrated Spam Protection
File Storage
Privacy
SMTP Support
JMAP
GDPR Compliant
CalDAV Support
IMAP Support
Sieve filtering
Built-in Calendar
Top 3 alternatives
mailcow: dockerized
Free • Open Source
Mail Server
WebMail Provider
Linux
Self-Hosted
18 alternatives to mailcow: dockerized
mailcow is a mail server suite based on Dovecot, Postfix, SOGo, Rspamd and other open source software, that provides a modern Web UI for administration.
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mailcow: dockerized Features
1. Dark Modemailcow: dockerized supports dark mode for comfortable usage in low light conditions.
2. Ad-freemailcow: dockerized doesn't contain any form of external advertising.
3. Two-factor Authenticationmailcow: dockerized supports two-factor authentication (2FA).
4. Mail Filteringmailcow: dockerized classifies email messages according to specified criteria, allowing you to automatically recognize fraudulent or spam messages.
5. Email Organizermailcow: dockerized allows you to take control of your inbox by filtering and control tools.
6. Spam Filtermailcow: dockerized can detect unsolicited, unwanted and virus-infected emails, calls, files, etc.
7. Support for Aliasesmailcow: dockerized supports aliases, so you can receive email without exposing your main email address
Self hosted mail
Support for Docker
ActiveSync
Modular System
Dockerized
Top 3 alternatives
NethServer
Free • Open Source
Firewall
Mail Server
VPN Service
Linux
Self-Hosted
CentOS
13 alternatives to NethServer
NethServer is a CentOS-based Linux distribution for servers. The product's main feature is a modular design which makes it simple to turn the distribution into a mail server and filter, web server, groupware, firewall, web filter, IPS/IDS or VPN server.
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NethServer Features
1. OpenVPNNethServer supports OpenVPN, one of the most secure and reliable VPN protocols.
Active Directory integration
Gateway
Web filter
Linux-based
Top 3 alternatives
Zimbra Collaboration Suite
Freemium • Open Source
Mail Server
Calendar App
Team Collaboration Tool
Linux
Online
Self-Hosted
43 alternatives to Zimbra Collaboration Suite
Zimbra Collaboration is an open, secure collaboration tool for email, calendaring, tasks and more. With the most innovative web application available today, Zimbra boosts the productivity of users on any desktop and dramatically reduces TCO compared to legacy platform vendors.
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Zimbra Collaboration Suite Features
1. Real time collaborationMultiple users can work together in Zimbra Collaboration Suite simultaneously.
ActiveSync
Active Directory integration
Top 3 alternatives
Microsoft 365
Paid • Proprietary
Mail Server
Project Management Tool
Online
Software as a Service (SaaS)
86 alternatives to Microsoft 365
Microsoft 365 is a subscription-based software services that licenses Microsoft Office products for on-premise or cloud-based use.
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Microsoft 365 Features
1. IFTTT IntegrationYou can connect different services to automatically trigger actions within Microsoft 365 using IFTTT.
2. Real time collaborationMultiple users can work together in Microsoft 365 simultaneously.
Document Workflow
Document sharing
Web-Based
Top 3 alternatives
Zentyal
Paid • Open Source
Mail Server
Linux Distro
Linux
28 alternatives to Zentyal
Zentyal is a native Microsoft Active Directory implementation on Linux incorporating all the network services required in a small and medium business environment: Directory & Domain Server, Mail Server, Gateway and Infrastructure Server.
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Zentyal Features
Gateway
Member Directory
Web interface
Top 3 alternatives
Mail-in-a-box
Free • Open Source
Mail Server
Self-Hosted
Roundcube
13 alternatives to Mail-in-a-box
Easy-to-deploy mail server.
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Mail-in-a-box Features
IMAP Support
Nextcloud integration
Top 3 alternatives
mail.com
Free • Proprietary
WebMail Provider
Mail Server
Online
41 alternatives to mail.com
mail.com provides its users with an customized selection of unique domains to pair with their desired address at no cost. Users can choose a domain that fits their lifestyle, profession, location, or personality, and through this personalization, their email address will become...
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mail.com Features
Custom Domain
Mail collector
Custom Link Alias
IMAP Support
Top 3 alternatives
ClearOS
Free • Open Source
Firewall
Operating System
Mail Server
Linux
30 alternatives to ClearOS
ClearOS is a family of operating systems for the enterprise, small business, and home. There are three editions to choose from depending on your needs and suitable to your abilities. They are: ClearOS Enterprise, ClearOS Home, and ClearOS Core.
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ClearOS Features
1. Spam FilterClearOS can detect unsolicited, unwanted and virus-infected emails, calls, files, etc.
Web-Based
Gateway
PhpMyAdmin
Top 3 alternatives
Inbox.lv
Free Personal • Proprietary
WebMail Provider
Mail Server
Online
25 alternatives to Inbox.lv
Inbox.lv Mail.

Add a screenshot
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Gmail Features

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Mailbox.org Features

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Google Workspace Features

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Cloudron Features

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MailDrop Features

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Fastmail Features

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mailcow: dockerized Features

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NethServer Features

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Zimbra Collaboration Suite Features

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Microsoft 365 Features

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Zentyal Features

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Mail-in-a-box Features

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mail.com Features

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ClearOS Features

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