• Windows: Download installation package davmail-version-setup.exe
  and follow instructions at DavMail Setup on windows
• Mac OS X: Either setup Java 7 from Oracle Java page and use the new DavMail-MacOSX-Java7-version.app.zip package or use Apple provided Java 6 with DavMail-MacOSX-version.app.zip
  and follow instructions at DavMail Setup on Mac OS X
  In both cases you will need to disable Gatekeeper on first downloaded application launch. If you don't you will get a warning or OSX will pretend the application is damaged and can’t be opened.
• Debian Linux (Ubuntu): Download debian package davmail_version-1_all.deb
  and follow instructions at DavMail Setup on linux
• Linux (other): Download linux package davmail-linux-x86-version.tgz , or 64 bits package davmail-linux-x86_64- version .tgz
  and follow instructions at DavMail Setup on linux
  Note: the only difference between 32 and 64 bits packages is the included SWT library.
• Other: Download platform independent package davmail-version.zip
  and follow instructions at DavMail Setup on linux
  

• Standalone: Download platform independent package davmail-version.zip
  and follow instructions at DavMail Setup as a standalone server
  
• Webapp: If you intend to run DavMail inside an application server, download webapp package davmail-version.war
  and follow instructions at DavMail Setup as a JEE Web Application (last section)
  

Download source tarball davmail-src-version.tgz
and follow instructions at Building DavMail from source