K-9 Mail Alternatives
K-9 Mail is described as 'K-9 is an open source email client for Android with multi-folder sync, email signatures, Bcc-to-self, return-address configuration, keyboard shortcuts, Exchange Support, message flagging, IMAP deletes, saving attachments, configurable notifications and more' and is a very popular Email Client in the office & productivity category. There are more than 25 alternatives to K-9 Mail for a variety of platforms, including Mac, Windows, Android, iPhone and Linux. The best alternative is Thunderbird, which is both free and Open Source. Other great apps like K-9 Mail are Microsoft Office Outlook, FairEmail, Evolution and Spark Mail.
K-9 Mail alternatives are mainly Email Clients but may also be Calendar Apps or WebMail Providers. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of K-9 Mail.Thunderbird
Do you think this is a good alternative?YesNo- Free • Open Source
- Email Client
- Calendar App
93 alternatives to Thunderbird- Mac
- Windows
- Linux
- BSD
- AppImageHub
- Snapcraft
- Flathub
- PortableApps.com
- Haiku
- Homebrew
- Chocolatey
Thunderbird is a free, open source, cross-platform e-mail, news and instant messaging client. The project strategy is modeled after Mozilla Firefox.
Thunderbird Features
Thunderbird vs K-9 Mail opinions
Microsoft Office Outlook
Do you think this is a good alternative?YesNo- Paid • Proprietary
- Email Client
- Calendar App
135 alternatives to Microsoft Office Outlook- Mac
- Windows
- Online
- Android
- iPhone
- Android Tablet
- Windows Phone
- iPad
- Apple Watch
- Android Wear
Microsoft Outlook, part of the Microsoft 365 (Office) (not to be confused with Microsoft Outlook Express), is a personal information manager that lets you manage your e-mail, calendar, contacts, and tasks.
Microsoft Office Outlook Features
Microsoft Office Outlook vs K-9 Mail opinions
Microsoft Office Outlook has more vulnerabilities and so far, seems more of a memory hogger on my device than K-9 Mail. Thank you, K-9 Mail!
5FairEmail
Do you think this is a good alternative?YesNo- Freemium • Open Source
- Email Client
45 alternatives to FairEmail- Android
- Android Tablet
- F-Droid
FairEmail is a privacy-focused email client with a setup wizard that helpfully walks you through the steps to use it with any email provider. There are many privacy settings including encryption via OpenPGP and S/MIME and reformatted emails to avoid phishing.
FairEmail Features
FairEmail vs K-9 Mail opinions
Evolution
Do you think this is a good alternative?YesNo- Free • Open Source
- Email Client
- Calendar App
82 alternatives to Evolution- Linux
- BSD
- S/MIME
- GNOME
- OpenPGP
- Flathub
Evolution is a personal information management application that provides integrated mail, calendaring, address book and task list functionality. Evolution supports a wide range of industry standard data formats and network protocols for information exchange, with an emphasis on...
Evolution Features
Spark Mail
Do you think this is a good alternative?YesNo- Freemium • Proprietary
- Email Client
- Calendar App
58 alternatives to Spark Mail- Mac
- Windows
- Android
- iPhone
- iPad
- Apple Watch
E-mail app with all the great features: swipes (long/short), snooze, add (multiple) attachments from the cloud, support for various e-mail services and more.
Spark Mail Features
Mailspring
Do you think this is a good alternative?YesNo- Freemium • Open Source
- Email Client
45 alternatives to Mailspring- Mac
- Windows
- Linux
- Arch Linux
- Fedora
- Ubuntu
Boost your productivity and send better email with Mailspring, a beautiful, fast email client for Mac, Windows, and Linux. Mailspring is free to use and an optional pro version adds read receipts, send later, reminders and more.
Mailspring Features
Delta Chat
Do you think this is a good alternative?YesNo- Free • Open Source
- Encrypted Chat App
- Instant Messenger
- Group Chat App
57 alternatives to Delta Chat- Mac
- Windows
- Linux
- Android
- iPhone
- Android Tablet
- FLATHUB
- F-Droid
Delta Chat looks and feels like other popular messenger apps, but does not involve centralized control, tracking or selling you, friends, colleagues or family out to large organizations. "Privacy by Design" has never been more fun.
Delta Chat Features
Claws Mail
Do you think this is a good alternative?YesNo- Free • Open Source
- Email Client
- Calendar App
- News Reader
83 alternatives to Claws Mail- Windows
- Linux
- BSD
Claws Mail is an email client (and news reader), based on GTK+, featuring
Quick response Graceful, and sophisticated interface Easy configuration, intuitive operation Abundant features Extensibility Robustness and stability.
Claws Mail Features
Betterbird
Do you think this is a good alternative?YesNo- Free • Open Source
- Email Client
28 alternatives to Betterbird- Windows
- Linux
- Flathub
Betterbird is a fine-tuned version of Mozilla Thunderbird, Thunderbird on steroids, if you will.
Betterbird Features
Postbox
Do you think this is a good alternative?YesNo- Paid • Proprietary
- Email Client
70 alternatives to Postbox- Mac
- Windows
Postbox is an email application that helps you organize your work life and get stuff done.
Postbox Features