Free microsoft exchange windows software for linux

Evolution Exchange 2.27.3 is professionally designed as the Ximian Connector for Microsoft Exchange, which adds support for Microsoft Exchange 2000 and 2003 to Evolution. Evolution provides integrated mail, addressbook and calendaring functionality to users of the GNOME desktop.

Openchange project intends to provide an Open-Source implementation of Microsoft Exchange Server 2003 under Unix Platforms.
The Openchange Project is developed in C language under the BSD license, and will primary work on NetBSD, OpenBSD, FreeBSD and Linux platforms. The project time line has been defined to approximatively one year, and we believe the project will be in a complete stable state at this time.
Openchange wishes to integrate the enterprise working environment and to substitute to an Exchange Server in a transparent way, so final users may continue to use Outlook, or any other mail client.
We also intend to provide to network administrators an easy solution to migrate Exchange databases into Openchange ones and reversely. And last but not least, we work so developers may reuse our sources in a smart way.
The project is divided into 4 parts :
- The OpenChange Library
- The OpenReverse Library
- The Documentation Framework
- The Openchange specifications
The OpenChange Library
This library includes all the requests managing the identification process, the data flow, and all the other requirements needed to permit the communication between an Outlook client and an Exchange Server. It can be used either to develop another Exchange-like server or client.
The OpenReverse Library
Due to legal restriction, the Openchange Server wont reuse the Microsoft Jet Database file format. Instead, we provide a library making easy to parse headers, retrieve the data, calculate checksum and more generally to offer a abstract migration tool to other user defined backends. This library can also be used for basics to develop a repair database tool.
The Documentation Framework
In the documentation framework, you will find all our research results. The subjects may concern the Exchange Internals or treat of a related subject. We wants to provide the most valuable information so our work can be shared with developers community.
The OpenChange Specifications
At last, we will provide the complete specifications of OpenChange in a printable way. This major document of the OpenChange team will help new developers to understand how Exchange Server works, how we implemented our APIs to make OpenChange, Exchange compatible. Around this main development, you will find several modules:
- OpenUtils Library
- OpenSniff
- OpenEDB
Enhancements:
- This release fixes limitations from the previous release (0.2) and adds a set of new features.
- Sending email messages to external recipients is now possible.
- It can also fetch and create appointments, contacts, and tasks in their respective default folder.
- Experimental NEWMAIL notification support is also available.
- The openchangeclient command line messaging tool has been improved and exchange2mbox has been introduced.
- It provides a way to synchronize an Exchange mailbox with an mbox file, supports MIME types, and is able to reflect changes back to Exchange.

Enterprise File Exchange (EFX) slots in where email file attachment limits stop your users from sending those important files to a contact.

In the EFX world, the user visits the EFX site, uploads the file, enters the receivers email address and lets the system notify the receiver that theres a file waiting for them, via a simple email message.

Senders need to sign up, and the EFX system only allows transfers between internal users (those with addresses in an approved list) and external users, never external to external.

It is written in Python, using the Pylons framework.

This project is licensed under the GNU GPL version 3.

Distributed Checksum Clearinghouse, in short DCC, is a system of clients and servers that collect and count checksums related to mail messages. The counts can be used by SMTP servers and mail user agents to detect and reject bulk mail.
DCC servers can exchange common checksums. The checksums include values that are "fuzzy", or constant across common variations in bulk messages.
Enhancements:
- This release improves the dccifd per-user whitelist default.
- It fixes the server database size estimate.
- Old installations really should upgrade to get the MIME decoding fix.

fetchExc project is java utilily which retrieves mail from your MS Exchange (2000/2003) inbox and forwards it to SMTP server of your choice or mbox type file.
FetchExc uses webDAV (OWA) to retrieve mail either over http or https. This is also means that you administrator must have left Outlook Webaccess available in Exchange in order to get this utility to work.
Although version number is still below 1.0 I consider this program usable in production environment.
There are still many places that should be polished and improved but atleast there havent been major problems in over an half a year. Before you install read installation instructions from below carefully.
Installing:
So far this only covers *nix systems (windows instructions may follow if they are needed)
Extract fetchExc-*.tar.gz or make directory for fetchExc.jar. If you are downloading Jakarta components yourself put them in the same directory as fetchExc.jar.
Create fetchExc.properties file in your home directory. Remember to protect it with chmod 700 (it contains your password). If you took .tar.gz package there should be example included.
ExchangeServer=xxx.dddddd.com
ExchangePath=exchange
ExchangeUser=exuser
MailServer=yyy.dddddd.com
DestinationAddress=user@yyy.dddddd.com
Username=domainuser
Password=domainpassword
Domain=DOMAIN
Delete=false
All=false
Secure=true
FBApath=/exchweb/bin/auth/owaauth.dll
ExchangeServer - Name of your MS Exchange server.
ExchangePath - Exchange path for MS Exchange OutLook WebAccess.
ExchangeUser - Name of you MS Exchange User.
You can test first three properties by making URL out of them: http://xxx.dddddd.com/exchange/exuser. This should give you a Outlook Webaccess Page.
MboxFile - Path and name of mbox-type mail box. This disables MailServer- and DestinationAddress-properties. Be careful with this because Im not 100% sure that file locking works (YMMV). If there are problems let me know. Also success reports would be nice.
MailServer - Name of your SMTP Server which receives forwarded messages. If there is MboxFile defined this property wont be used.
DestinationAddess - Address of recipient of forwarded messages. If there is MboxFile defined this property wont be used.
Username - Username for your windows domain user. It may be same as ExchangeUser but necessarily.
Password - Password for domain user.
Domain - Domain for above user.
Delete - Whether program should delete mail from Inbox or just mark them as read. If Delete is true mail will be deleted after succesful forwarding. Any other value will just mark message as read. While you are configuring other properties I strongly recommend that you use value false for this property.
All - Whether program should real all mail from Inbox or just which are not read yet. If All is true every mail will be read. Any other value will read only unread mail. While you are configuring other properties I strongly recommend that you use value false for this property.
WARNING!!! Dont combine Delete=false and All=true if you are not testing. That will fetch every mail from your Inbox everytime you start the program.
Secure - If value is true program will use https. Any other value will use http. Https should be user whenever possible.
FBApath - Path to form based authentication. If not set defaults to /exchweb/bin/auth/owaauth.dll. This can be found on FBA login page source (hint: search for "destination")
ForceFrom - If this is set to true forwarded mail will be forwarded with address from ForceFromAddr parameter. This only happens when sender address is not valid. For example if there is two From: fields in mail header Exchange can join addresses. NOTE: This may help spam to get through so use carefully.
ForceFromAddr - E-mail address that forwarding server will accept. Only used if ForceFrom is true
NoEightBitMime - If this is true SMTP forwarding doesnt use BODY=8BITMIME. Default is false.
Now you just need to include JRE in you path. If it is in you path you can run program:
java -jar /install/fetchExc/fetchExc.jar
You can now (>0.80) use -p switch to change properties file. For example:
java -jar /install/fetchExc/fetchExc.jar -p test.properties
would run program using properties from test.properties
I use fetchExc with following little shell script and crontab entry so that it keeps fetching mail every two minutes.
fetchExc
#!/bin/bash
export PATH=$PATH:/usr/local/jre/bin
java -jar /install/fetchExc/fetchExc.jar $* >> fetchExc.log 2>> fetchExc.err
If you use this script replace /usr/local/jre/bin with path to your java runtime environment. Same applies to location of your installation on next line.
crontab entry:
*/2 * * * * ~jrauti/bin/fetchExc
Enhancements:
- Java has been changed from 1.4 to 1.5.
- The Jakarta HHTTP client has been upgraded from 2.0 to 3.0.
- Proxying also works with HTTPS.
- Code cleanups.
- A small fix in mbox saving (in Mac OS X, messages were coalesced).

MailArchiva is a powerful email archiving solution. MailArchiva project is all you need to ensure that your organizations emails are backed up permanently. It automatically retrieves emails from Microsoft Exchange and stores them on multiple hard disks.
MailArchiva stores all incoming, outgoing, and internal emails for long-term storage. In doing so, it enables your company to retain valuable knowledge and comply with US and EU legislation such as the Sarbanes Oxley Act.
MailArchiva ensures that the integrity of your information remains intact. Emails are stored directly on the filesystem, as opposed to a database. As a result, there are no hidden database maintenance costs and the integrity of archived information is not subject to database corruption.
MailArchiva is a turnkey product that is easy to install and use. A clean install usually takes approximately 30 minutes.
MailArchiva is a commercially supported open source product. You have the assurance of commercial grade support combined with open source benefits.
Enhancements:
- This release introduces several major enhancements and bugfixes.
- For instance, MailArchiva is now fully internationalized, supporting indexing, search, and retrieval of emails in multiple languages.
- The archiving server has been completely rearchitected to utilize Java 1.6 contructs.
- The Microsoft Exchange archiving agent has been redesigned from the ground up.

Fetchmail is a full-featured, robust, well-documented remote-mail retrieval and forwarding utility intended to be used over on-demand TCP/IP links (such as SLIP or PPP connections). Fetchmail supports every remote-mail protocol now in use on the Internet: POP2, POP3, RPOP, APOP, KPOP, all flavors of IMAP, ETRN, and ODMR. It can even support IPv6 and IPSEC.
Fetchmail retrieves mail from remote mail servers and forwards it via SMTP, so it can then be read by normal mail user agents such as mutt, elm(1) or BSD Mail. It allows all your system MTAs filtering, forwarding, and aliasing facilities to work just as they would on normal mail.
Fetchmail offers better security than any other Unix remote-mail client. It supports APOP, KPOP, OTP, Compuserve RPA, Microsoft NTLM, and IMAP RFC1731 encrypted authentication methods including CRAM-MD5 to avoid sending passwords en clair. It can be configured to support end-to-end encryption via tunneling with ssh, the Secure Shell.
Fetchmail can be used as a POP/IMAP-to-SMTP gateway for an entire DNS domain, collecting mail from a single drop box on an ISP and SMTP-forwarding it based on header addresses. (We dont really recommend this, though, as it may lose important envelope-header information. ETRN or a UUCP connection is better.)
Fetchmail can be started automatically and silently as a system daemon at boot time. When running in this mode with a short poll interval, it is pretty hard for anyone to tell that the incoming mail link is not a full-time "push" connection.
Fetchmail is easy to configure. You can edit its dotfile directly, or use the interactive GUI configurator (fetchmailconf) supplied with the fetchmail distribution. It is also directly supported in linuxconf versions 1.16r8 and later.
Fetchmail is fast and lightweight. It packs all its standard features (POP3, IMAP, and ETRN support) in 196K of core on a Pentium under Linux.
Fetchmail is open-source software. The openness of the sources is your strongest possible assurance of quality and reliability.
Main features:
- STARTTLS is supported in both POP and IMAP.
- ESMTP AUTH (RFC 2554) is supported.
- Has the capability of adding trace information to the Received header to faciliate mail filtering by mailserver and remote account.
- Fetchmail now has options to handle SSL certificate validation.
- Fetchmail can be told to fall back to delivering via local sendmail if it cant open port 25.
- Support for AUTH=CRAM-MD5 under POP3, a la RFC2195.
- Support for ODMR (On-Demand Mail Relay), RFC 2645.
- Its now easy to deliver mail to a local LMTP socket.
- The interface option now checks both local and remote interface IPs.
- The plugin facility has been enhanced; %h and %p options are now available to pass in the hostname and service port number.
- Added a dropdelivered option to discard Delivered-To headers. This addresses a problem with using fetchmail and postfix as a relay inside a domain; when postfix sees incoming messages with delivered-to headers looking exactly the same as the ones it adds himself, it bounces the message.
- Added --smtpname to set username and domain portion of SMTP "RCPT TO" command. - Added "from" servers IP address to inserted Received line.
- Fetchmail now runs on BeOS, thanks to David Reid .
- In IMAP, unseen-message counting and indexing is now done by SEARCH UNSEEN at the beginning of each poll or re-poll (rather than with the UNSEEN and RECENT responses and FLAGS queries on individual messages). This significantly cuts down on traffic to and from the server, and gives more reliable results.
- The aka option now matches hostname suffixes, so (for example) saying `aka netaxs.com will match not just netaxs.com but also (say) pop3.netaxs.com and mail.netaxs.com.
- Fetchmail can optionally use the RFC 2177 IDLE extension on an IMAP server that supports it. On IMAP servers that dont, it can simulate it using periodic NOOP commands.
- Fetchmail now recognizes the RFC 2449 extended responses [IN-USE] and [LOGIN-DELAY].
- Fetchmail running in daemon mode now restarts itself quietly when the rc file is touched.
- Following recent court decisions and changes in U.S. federal regulatory policy, hooks for Secure Sockets Layer (SSL) are now part of the main fetchmail distribution. The distribution still contains no actual cryptographic code.
- NTLM support under IMAP, so fetchmail can query Microsoft Exchange servers.
- Expunge option can now be used to break POP3 retrieval into subsessions.
- Support for AUTH=CRAM-MD5 under IMAP, a la RFC2195.