Free how to use kerio webmail software for linux

OverLook is a branch of the famous e-mail client SquirrelMail, transformed for being an usable application also by a less expert user, accustomed using other tools for the management of his mail.
OverLook Webmail has not been only changed the skin, but the usability of the entire interface, that its now more intuitive, fast and efficient.
Enhancements:
- New themes have been added and new functionality has been implemented.

Perl Webmail is a CGI/mod_perl application that interfaces with external POP3 and SMTP services.
Perl Webmail provides all the expected functionality of a mail client, such as read, reply, forward, delete, as well as sending and receiving attachments, storage for mail folders, contacts, and calendar notes.
Requierments:
- Mail::Box
- Crypt::Blowfish
- Crypt::CBC
- Date::Parse
- Text::Wrap
- IO::Scalar
Enhancements:
- This release features a rewrite for Template Toolkit support, various code level improvements, and a build script to generate a Slackware package.

Horde Groupware Webmail Edition is a free, enterprise ready, browser based communication suite. Users can read, send and organize email messages and manage and share calendars, contacts, tasks and notes with the standards compliant components from the Horde Project.
Horde Groupware Webmail Edition bundles the separately available applications IMP, Ingo, Kronolith, Turba, Nag and Mnemo.
The project can be extended with any of the released Horde applications or the Horde modules that are still in development, like a file manager, a bookmark manager, a forum or a wiki.
Main features:
- IMAP and POP3 webmail client
- Message filtering
- Message searching
- HTML message composition with WYSIWIG editor
- Spell checking
- Built in attachment viewers
- Encrypting and signing of messages (S/MIME and PGP)
- Quota support
- Keyboard navigation
- Full character set support for folders names and email messages
- Conversation view of all messages in a thread
- Folder tree in left menu pane
- Message previews in mailbox view
- Downloading of message attachments in a ZIP file
- Fetching of messages from external email accounts
- Flexible, individual alias addresses
- IMAP folder subscriptions
- Shared IMAP folders
- Graphical emoticons
- Support for mailing list headers
- Forwarding of multiple messages at once
- Attachments sent as links
Enhancements:
- A local arbitrary file deletion vulnerability and XSS vulnerabilities in the Webmail search screen and thread view have been fixed.
- Displaying of PGP messages has been improved.
- mailto: links in HTML email messages are turned into IMP compose links.
- The Oracle session handler has been rewritten.
- Validation of some email distribution lists has been fixed.
- Compatibility with Internet Explorer 7 has been improved.
- Blacklists and whitelists when using the IMAP driver have been fixed.
- Many small bugfixes and improvements have been made.

NS WebMail project is a simple set of PERL scripts, it works using module Mail::POP3Client, and allows to send and receive MIME compliant mails.
The whole thing is "secured" using POP3 authentication, ie mail cant be send or retrieved without initial correct authentication.APOP and standard PASS authentication work.
No need of any SQL base and so on. However, better know how PERL and CGIs work ! This allows NSWM to remain simple and light, and not to require an important set of PERL modules.
NSWM now support two kinda security improvments:
- HTTP Auth: just configure your Apache to authenticate user with normal HTTP Auth. Then you
need to use indexauth.pl instead of index.html as a start page, and run NSWM in mod_perl.
It works automatically.
- Cookie stored key: the key used to encrypt the password may be stocked partially in a cookie.
This prevents bad guys from accessing other users inboxes when they used shared computers.
You have to enable this feature in the configwm.pm file, at "cookiedomain": enter your
domain to enable the feature, comment the line out to disable.
Both security features will work over HTTPS.
Supported languages
Modules exists and languages have been tested for:
- English (lang-en.pl module, core module)
- Francais (lang-fr.pl module, dev module)
- Russian (lang-ru.pl module, dev module)
- Hrvatski (lang-hr.pl module, trn module from dpavlin at rot13.org)
- Deutsch (lang-de.pl module, trn module from Tobias.Mueller at stud.uni-hannover.de)
- Norwegian (lang-no.pl module, trn module from erlingp at f00bar.fagmed.uit.no)
- Hungarian (lang-hu* modules, trn module from keve_g at mail.takarek.net)
- Swedish (lang-se.pl, trn module from hm at nool.nu)
- Czech (lang-cz.pl, trn module from svasek at nextra.cz)
- Italian (lang-it.pl, trn module from theos at bp.lnf.it)
- Spanish (lang-spl.pl, trn module from scristi at startlight.com)
- Portuguese (lang-pt.pl, trn module from luiz at pucrs.br)
- Romanian (lang-ro.pl, trn module from chally_ro at yahoo.com)
Anyone translating the langpack in another language is asked to send it us, please !
This way we can improve NSWM.
installation
1- Unzip it:
On performant UNIX (with recent gnu tar), do a tar xvzf nswm-XXXXXX.tar.gz
On Windows, use Winzip or PowerArchiver (http://www.powerarchiver.com)
2- Set up your favorite HTTP server to handle the application.
For Apache:
=> put an Alias section as /nswm for the nswm/html directory
=> put a ScriptAlias section as /nswm/cgi-bin for the nswm/cgi-bin directory
For IIS,NES:
Use the graphic interface to set it up properly. Refer to server documentation.
3- Then you have to edit configwm.pm file and specify your SMTP server ($SMTPserver variable).
Words and paths can be set up in config.pl file.
You can also choose the language.
Nota: configwm.pm template is configwm.pm.dist.
4- PERL Modules to install if not installed:
Dont forget to install them (example with Mail::POP3Client):
=> perl -MCPAN -e install Mail::POP3Client on UNIX (or see at http://www.cpan.org)
or ppm Mail-POP3Client on WNTs ActivePerl (but better see at http://www.activetsate.com)
The following modules/packages are needed:
IO-stringy,MIME-Base64,MIME-Lite,MIME-tools,MailTools,Mail::POP3Client,TimeDate,URI,CGI
(yeah, thats a lot, i know. MIME encoding/decoding isnt a simple thing...)
5- Misc install things:
Dont forget to chmod 777 (or, better, chown apache or nobody or www-data) the /var/opt/nswm/log and
/var/opt/nswm/tmp directories if you dont change those locations in the configwm.pm file.
You can do a small cron script to launch bin/nswmcron to enable the automatic cleanup of temp files (This is automatically done by the RPM). Dont forget to change the html/title.htm file....
Enhancements:
- Several improvements in mail header decoding in the inbox.
- Optional ability to report spam to spam software (tested and documented with SpamAssassin).
- Full management of the "Urgent header".

PHPwebmail is a Web-based IMAP and SMTP mail client. Often it is not possible to make outside mail connections from networks behind strict firewalls, or to configure a regular mail client (for example in an Internet cafe).

With PHPwebmail a mail client only needs a WWW connection to the mailserver. Specifically it only needs a connection to the webserver hosting PHPwebmail.

Most of the times the Web and mail server will be the same machine but PHPwebmail can connect to other mailservers as well as long as an IMAP connection between these two machines is allowed.

RoundCube Webmail is a browser-based multilingual IMAP client with an application-like user interface.
RoundCube Webmail provides full functionality you expect from an e-mail client, including MIME support, address book, folder manipulation and message filters. RoundCube Webmail is written in PHP and requires the MySQL database. The user interface is fully skinnable using XHTML and CSS 2.
Main features:
- Multilingual capabilities
- Full support for MIME and HTML messages
- Compose messages with attachments
- Multiple sender identities
- Basic address book
- Find-as-you-type address book integration
- Create or remove custom message folders
- Built-in caching for fast mailbox access
- Support for external SMTP server
- Advanced user interface
- Unlimited users and messages
- Complete customization with skins
Enhancements:
- This release has a stable core and a new message parser (less memory consuming).
- It works with PHP safe_mode and creates valid HTML.
- It has new LDAP integration and allows you to search for contacts.

WebMail is a www-frontend to IMAP/POP3 mailboxes. You can compare it to the systems Hotmail, YahooMail etc use.
Main features:
- gives a user complete access to his POP3 or IMAP mailboxes via an easy-to-use web interface
- neither Java nor Javascript on the Clientside
- runs as Java Servlet (and Servlet 2.2 WebApp)
- pluggable services (IMAP, POP3, ...) through the Java Mail API
- configurable looknfeel through templates
- user configurable mailboxes: each folder may be on a different IMAP host
- sophisticated folder support
- support for multiple languages
- MIME support: images, html- and textfiles are shown via the webbrowser (configurable), all other files may be downloaded with a click
- fancy mail formatting: link highlighting, umlaut conversion, "smiley-substitution"
- Very fast compared to CGI scripts
- Modular concept with plugin support
- Easy administration (webinterface) and installation

WizMail is a Webmail system that strives to keep synchronized with the email on a POP3 server so that it can be accessed from the Web when an email client cant be used, and then downloaded when possible.

It is also able to filter incoming email into different folders, offers different configurable identities and signatures per user, and supports drag and drop.

WizMail project supports downloading and relaying of email using any SMTP/POP3 client: using WizMailTunnel, your email server can be accessed through HTTP/HTTPS proxies.