Apps with 'JMAP' feature

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Fastmail
Paid • Proprietary
WebMail Provider
Calendar App
Mail Server
Online
Android
iPhone
Android Tablet
iPad
62 Fastmail alternatives
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
Cypht
Free • Open Source
Email Client
Self-Hosted
11 Cypht alternatives
All your E-mail, from all your accounts, in one place. Cypht is like a news reader, but for E-mail. Cypht does not replace your existing accounts - it combines them into one. And it's also a news reader :).
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Cypht Features
1. End-to-End EncryptionCypht has E2E Encryption, for entire or parts of the app.
JMAP
IMAP Support
Built-in RSS reader
POP3 Support
Modules
SMTP Support
Top 3 alternatives
Cyrus IMAP
Free • Open Source
Mail Server
Mac
Linux
5 Cyrus IMAP alternatives
The Cyrus IMAP server differs from other IMAP server implementations in that it is generally intended to be run on sealed servers, where normal users cannot log in. Users can access mail through the IMAP/IMAP-S, JMAP, POP3/POP3-S or KPOP protocols.
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Cyrus IMAP Features
CalDAV Support
JMAP
IMAP Support
POP3 Support
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Apache James
Free • Open Source
Mail Server
Mac
Windows
Linux
Self-Hosted
7 Apache James alternatives
James stands for Java Apache Mail Enterprise Server! It has a modular architecture based on a rich set of modern and efficient components which provides at the end complete, stable, secure and extendable Mail Servers running on the JVM.
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Apache James Features
JMAP
SMTP Support
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Top 3 alternatives
Group Office
Freemium • Proprietary
Online
Self-Hosted
122 Group Office alternatives
Group-Office is an enterprise CRM and groupware tool. Share projects, calendars, files and e-mail online with co-workers and clients. Easy to use and fully customizable.
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Group Office Features
JMAP
Online Editing
Top 3 alternatives

Fastmail

Fastmail Features

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Cypht

Cypht Features

Top 3 alternatives

Cyrus IMAP

Cyrus IMAP Features

Top 3 alternatives

Apache James

Apache James Features

Top 3 alternatives

Group Office

Group Office Features

Top 3 alternatives