R2Mail2

R2Mail2


R2Mail2 is an email client for Android OS which provides cryptographic capabilities, such as Digital Signatures and Digital De- and Encryption based on personal Soft-Token keys (.p12 format), as for example provided by a Trust Center or generated by PGP applications. Even though we focus on the best cryptographic experience in the Android email world, we try to provide a full functioning mail client with corresponding safety features in general.

Since some people do not understand difficult sentences:
THIS IS DEMO WHICH DISPLAYS ONLY THE NEWEST 10 MAILS!

The unlimited edition of this app will be available via the Google Play Store in form of a purchasable key. The free version of R2Mail2 is also a replacement for our established and also free app X509Tools - so the ability to decrypt or verify content (in form of p7m-files) is even available without creating a mail account. To unlock the R2Mail2 and see all messages please install "R2Mail2 License" from Google Play (https://play.google.com/store/apps/details?id=at.rundquadrat.android.r2mail2license).

Features:
* E-Mail Server: IMAP (incl. pushmail/idle), POP, SMTP and Exchange (>2007 SP1)
* SSL with X-509 client certifiate authentication
* An database in which the mails are stored encrypted
* Special Attachment View (browse your attachments without checking single mails)
* Unified Inbox and E-Mail Threading
* Peak Options for check intervals
* Search Function for messages per Folder
* IMAP shared folders

Main Cryptographic Features:
* Private keys and passwords are stored in an encrypted database (Key-Store) and protected by a Master Password.
* The security settings allow the configuration of encryption parameters, signature and certificate validation methods (OCSP and LDAP).
* Full S/MIME and PGP Plain and PGP MIME support
* Automatic selection of S/MIME or PGP for each recipient
* Full support of Android Root Store
* Certificate import of .crt, .pem and .asc formats
* Certificate/Key import from KeyServer LDAP or HKP (HTTP)

The application needs the following Android permissions to run:
* Full Internet Access - required to send and receive emails
* Modify/Delete SD card content - required to access the private key store, download attachments and to write log-files
* Read Contacts - required to suggest email addresses from your contacts
* Network State - required to check if an Internet connection is present
* Vibrate – required for notification purposes
* WakeLock - to allow service to check mails in background

PLEASE DO NOT REPORT ERRORS IN COMMENTS! We cannot react on that!
If you get errors please use "Menu -> Report Error" on the start-screen to send us the log-file information in your preferred way!

Informations about Private Key and Validity Handling:
The application comes without a personal key pair (the users private and public key) - so it is fully functioning in the sense of sending and receiving emails as any other mail client and provides the correct usage of validation if the mail you receive is signed by the sender.
For signing or encrypting a message it is necessary to use a private key you own. Turn to a Trust Center of your choice as a source of supply. You can find a list of trust centers, which are trusted within the Android world, in the Certificate Store (CA section) of R2Mail2. Please be aware that this app can only support Soft-Token in form of P12-files and will not work with smartcard-based certificates.

The private key you use for signing and decryption is bound to the validity of the certificate. This means, that after the certificate is revoked or no longer valid (because the date stated in the field “Valid To” of your certificate is in the past) signatures will not be possible. Nonetheless, we implemented the function to decrypt messages with private keys even with no longer valid certificates. So your messages will always be available to you, even with older keys.

For more information visit http://r2mail2.com

Recent changes:
2.10:
- Local Folder are clickable again
- Option to disable message mark as read on open (Misc)
- Account colors are now displayed correctly
- Orientation changes on tablet work correctly
- S/MIME enveloped signed messages (like Outlook creates them) are correctly displayed
- MasterPassword-Cache-Icon should not be displayed if no password is set
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Free
84
4.2
User ratings
253
Installs
10,000+
Concerns
1
File size
7661 kb
Screenshots
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About R2Mail2
R2Mail2 is an email client for Android OS which provides cryptographic capabilities, such as Digital Signatures and Digital De- and Encryption based on personal Soft-Token keys (.p12 format), as for example provided by a Trust Center or generated by PGP applications. Even though we focus on the best cryptographic experience in the Android email world, we try to provide a full functioning mail client with corresponding safety features in general.

Since some people do not understand difficult sentences:
THIS IS DEMO WHICH DISPLAYS ONLY THE NEWEST 10 MAILS!

The unlimited edition of this app will be available via the Google Play Store in form of a purchasable key. The free version of R2Mail2 is also a replacement for our established and also free app X509Tools - so the ability to decrypt or verify content (in form of p7m-files) is even available without creating a mail account. To unlock the R2Mail2 and see all messages please install "R2Mail2 License" from Google Play (https://play.google.com/store/apps/details?id=at.rundquadrat.android.r2mail2license).

Features:
* E-Mail Server: IMAP (incl. pushmail/idle), POP, SMTP and Exchange (>2007 SP1)
* SSL with X-509 client certifiate authentication
* An database in which the mails are stored encrypted
* Special Attachment View (browse your attachments without checking single mails)
* Unified Inbox and E-Mail Threading
* Peak Options for check intervals
* Search Function for messages per Folder
* IMAP shared folders

Main Cryptographic Features:
* Private keys and passwords are stored in an encrypted database (Key-Store) and protected by a Master Password.
* The security settings allow the configuration of encryption parameters, signature and certificate validation methods (OCSP and LDAP).
* Full S/MIME and PGP Plain and PGP MIME support
* Automatic selection of S/MIME or PGP for each recipient
* Full support of Android Root Store
* Certificate import of .crt, .pem and .asc formats
* Certificate/Key import from KeyServer LDAP or HKP (HTTP)

The application needs the following Android permissions to run:
* Full Internet Access - required to send and receive emails
* Modify/Delete SD card content - required to access the private key store, download attachments and to write log-files
* Read Contacts - required to suggest email addresses from your contacts
* Network State - required to check if an Internet connection is present
* Vibrate – required for notification purposes
* WakeLock - to allow service to check mails in background

PLEASE DO NOT REPORT ERRORS IN COMMENTS! We cannot react on that!
If you get errors please use "Menu -> Report Error" on the start-screen to send us the log-file information in your preferred way!

Informations about Private Key and Validity Handling:
The application comes without a personal key pair (the users private and public key) - so it is fully functioning in the sense of sending and receiving emails as any other mail client and provides the correct usage of validation if the mail you receive is signed by the sender.
For signing or encrypting a message it is necessary to use a private key you own. Turn to a Trust Center of your choice as a source of supply. You can find a list of trust centers, which are trusted within the Android world, in the Certificate Store (CA section) of R2Mail2. Please be aware that this app can only support Soft-Token in form of P12-files and will not work with smartcard-based certificates.

The private key you use for signing and decryption is bound to the validity of the certificate. This means, that after the certificate is revoked or no longer valid (because the date stated in the field “Valid To” of your certificate is in the past) signatures will not be possible. Nonetheless, we implemented the function to decrypt messages with private keys even with no longer valid certificates. So your messages will always be available to you, even with older keys.

For more information visit http://r2mail2.com

Recent changes:
2.10:
- Local Folder are clickable again
- Option to disable message mark as read on open (Misc)
- Account colors are now displayed correctly
- Orientation changes on tablet work correctly
- S/MIME enveloped signed messages (like Outlook creates them) are correctly displayed
- MasterPassword-Cache-Icon should not be displayed if no password is set

User reviews of R2Mail2
Write the first review for this app!
Android Market Comments
A Google User
Friday 10:08 PM
Should be able to import my ca.pem file. On pc, thunderbird imports my certificate authority ca.pem file and then my p12 file. R2mail2 will not accept the certificate authority file, but has a accept self signed option which I suppose gets the job done. Worse problem is that I received a S/MIME signed email, the key gets into the keystore, but I can not send encrypted email back to that user. R2mail2 complains it can not find a key for the email address, but the email address is clearly in the key.
A Google User
Mar 22, 2015
Very nice First mail app for Android that supports S/MIME and PGP/MIME properly! Actively developed and improved, dev responds very quickly. If it only was OSS'ed... :-)
A Google User
Mar 16, 2015
Works. Program does everything i need it to, and does it well. Updated UI is much better than the previous iteration.
A Google User
Mar 16, 2015
Working Well Again V 2.08 update working well - It finally solved my PGP signatures 'Not Valid' errors. I do miss the verbose progress information that used to be provided when updating/fetching mail. Great Job!
A Google User
Mar 14, 2015
Nice update Updated UI is a nice improvement. I use this app for S/MIME (paid for the "full edition" license) and it works pretty well. Best Android experience I have found for encrypted email.