SMail - Secure Email

SMail - Secure Email


SMail - Secure Email client for message encryption and authentication

User manual:
https://drive.google.com/folderview?id=0B-gF4Jvndy0ObWczZXZ2dmNxRm8&usp=sharing

Security Features:
- S/MIME certificate public key or password based encryption and decryption
- S/MIME private key sign and signature verification
- S/MIME compress
- Supports S/MIME on POP3, IMAP4, SMTP and Microsoft Exchange ActiveSync
- Various format support: Clear text or opaque signing, binary encoding for internal attachment to reduce message size
PKI (Public Key Infrastructure) support:
- Certificate chain verification with revocation checking
- Resolve contact certificates on LDAP and Exchange server (No pre-installation of contact certificate is required for an enterprise PKI)
- Options on the certificate and CRL caching and refreshing
- Auto retrieval of CRL and intermediate CA based on information in the certificate
- Validate certificate revocation status using OCSP
- Validate signing certificate with Exchange server
- Well balanced between security and usability
- Supports smart card (PKCS#11 or java key store. Still looking for public smart card middle-ware solution)

Algorithms support:
RSA, 3DES, AES, SHA1, SHA256, SHA512

Free edition has advertisement.
You can try the full functions for 14 days after installation. (Some functions and Exchange support may be disabled after the free trial period).
You can purchase to remove advertisement and enable advanced features:
Advanced features: AES256, SHA256, SHA512, CRL, OCSP, LDAP
Exchange: Use Exchange account, AES256, SHA256, SHA512,

Email client features:
- IMAP push and Exchange ActiveSync push
- Exchange ActiveSync contacts and calendar synchronization, GAL
- Two pane view mode for tablet
- Compose message in HTML rich text
- Mailboxes list widget

What is encrypted:
Private keys, password, draft messages (derived device key or user's public key), some security settings
What is not:
Normal plain text messages. (Application password is for access verification and not used for full database encryption)

User Manual:
Please press the help button when creating an account.

Known issues:
- If you setup an Exchange account and set SMail as device administrator, later if you want to uninstall SMail, please go to Settings -> Security -> Device administrators and un-check SMail before uninstallation.
- S/MIME Compression is a component of S/MIME to reduce the message size and encryption processing time. It is only effective if the message has a very long text or is signed/encrypted and internal attachment encoding is "binary"
- Password based encryption, compression and binary encoding may not be well supported by other email clients which support S/MIME and may cause problems. Please test before real use
- PGP is not supported but in planning

Planned features:
More email operations, Search, Exchange Tasks and Notes

For the name Gimy, it should be pronounced like Jimmy, which means highly classified secret in Chinese.

Oops, the app crashed!!!
-> Post a complain -> Nothing changed -> We are all unhappy
-> Send developer an email to seek for help -> Problem is fixed -> We are all happy
This developer is willing to help. If you find any bugs or have any problem, feel free to send a message to [email protected] .
Please describe your problem in details and provide as much information as you can.
Thank you!

Recent changes:
v1.3.2.0
+ Added a dialog to display the recipients after the to or cc field is clicked
+ Setting timeout for CRL, OCSP and intermediate CA file retrieval
+ OCSP nonce checking options
Bug fixes
v1.3.1.0
+ Mailboxes list widget (Android 4.x)
+ Allow to set mailboxes to display in the mailbox compact list (Please go to "Global settings -> Default mailboxes)
Various bug fixes
v1.3.0.0
+ Pull to refresh
+ Change account color
Bug fixes and code restructuring
Add to list
Free
78
3.9
User ratings
95
Installs
5,000+
Concerns
2
File size
4831 kb
Screenshots
Screenshot of SMail - Secure Email Screenshot of SMail - Secure Email Screenshot of SMail - Secure Email Screenshot of SMail - Secure Email Screenshot of SMail - Secure Email Screenshot of SMail - Secure Email Screenshot of SMail - Secure Email Screenshot of SMail - Secure Email Screenshot of SMail - Secure Email Screenshot of SMail - Secure Email Screenshot of SMail - Secure Email

About SMail - Secure Email
SMail - Secure Email client for message encryption and authentication

User manual:
https://drive.google.com/folderview?id=0B-gF4Jvndy0ObWczZXZ2dmNxRm8&usp=sharing

Security Features:
- S/MIME certificate public key or password based encryption and decryption
- S/MIME private key sign and signature verification
- S/MIME compress
- Supports S/MIME on POP3, IMAP4, SMTP and Microsoft Exchange ActiveSync
- Various format support: Clear text or opaque signing, binary encoding for internal attachment to reduce message size
PKI (Public Key Infrastructure) support:
- Certificate chain verification with revocation checking
- Resolve contact certificates on LDAP and Exchange server (No pre-installation of contact certificate is required for an enterprise PKI)
- Options on the certificate and CRL caching and refreshing
- Auto retrieval of CRL and intermediate CA based on information in the certificate
- Validate certificate revocation status using OCSP
- Validate signing certificate with Exchange server
- Well balanced between security and usability
- Supports smart card (PKCS#11 or java key store. Still looking for public smart card middle-ware solution)

Algorithms support:
RSA, 3DES, AES, SHA1, SHA256, SHA512

Free edition has advertisement.
You can try the full functions for 14 days after installation. (Some functions and Exchange support may be disabled after the free trial period).
You can purchase to remove advertisement and enable advanced features:
Advanced features: AES256, SHA256, SHA512, CRL, OCSP, LDAP
Exchange: Use Exchange account, AES256, SHA256, SHA512,

Email client features:
- IMAP push and Exchange ActiveSync push
- Exchange ActiveSync contacts and calendar synchronization, GAL
- Two pane view mode for tablet
- Compose message in HTML rich text
- Mailboxes list widget

What is encrypted:
Private keys, password, draft messages (derived device key or user's public key), some security settings
What is not:
Normal plain text messages. (Application password is for access verification and not used for full database encryption)

User Manual:
Please press the help button when creating an account.

Known issues:
- If you setup an Exchange account and set SMail as device administrator, later if you want to uninstall SMail, please go to Settings -> Security -> Device administrators and un-check SMail before uninstallation.
- S/MIME Compression is a component of S/MIME to reduce the message size and encryption processing time. It is only effective if the message has a very long text or is signed/encrypted and internal attachment encoding is "binary"
- Password based encryption, compression and binary encoding may not be well supported by other email clients which support S/MIME and may cause problems. Please test before real use
- PGP is not supported but in planning

Planned features:
More email operations, Search, Exchange Tasks and Notes

For the name Gimy, it should be pronounced like Jimmy, which means highly classified secret in Chinese.

Oops, the app crashed!!!
-> Post a complain -> Nothing changed -> We are all unhappy
-> Send developer an email to seek for help -> Problem is fixed -> We are all happy
This developer is willing to help. If you find any bugs or have any problem, feel free to send a message to [email protected] .
Please describe your problem in details and provide as much information as you can.
Thank you!

Recent changes:
v1.3.2.0
+ Added a dialog to display the recipients after the to or cc field is clicked
+ Setting timeout for CRL, OCSP and intermediate CA file retrieval
+ OCSP nonce checking options
Bug fixes
v1.3.1.0
+ Mailboxes list widget (Android 4.x)
+ Allow to set mailboxes to display in the mailbox compact list (Please go to "Global settings -> Default mailboxes)
Various bug fixes
v1.3.0.0
+ Pull to refresh
+ Change account color
Bug fixes and code restructuring
User reviews of SMail - Secure Email
Write the first review for this app!
Android Market Comments
A Google User
Jul 8, 2014
THE BEST. HAS IT ALL Excellent app and developer. Very fast to respond and assist when needed. This email client has EVERYTHING you could ask for or need if you want a great interface and utilize smime digital signature and encryption. The only true android alternative Outlook desktop and Thunderbird. Thanks Gimy. Awesome!
A Google User
Jul 6, 2014
Excellent! Like all of the little things about the SMail GUI that makes it a workhorse and helps me be more productive. It's a very good mail client overall, even if you dont need the excellent SMime security features. Less eye candy "iOS" styling, more about function. Developer is very responsive. Don't understand why more people don't know about or use this app.
A Google User
Jun 1, 2014
V Good This the actual email client which I am looking for ..and best thing is HTML editing with bold,underline etc....1 star less due to font color options is not enable place fix it..
A Google User
May 22, 2014
Works great! This is the best android app I've found so far that supports inbound and outbound encryption on an Exchange account.
A Google User
Apr 11, 2014
New Daily Driver Update: I've always liked all of the little things about the SMail GUI that makes it a workhorse and helps me be more productive. Had deal-breaker issues with it and our old Exchange 2003 server, but SMail is working great on our new 2010 server. Not using the secure functions, but it's a very good mail client overall. Less eye candy "iOS" styling, more about function.