Right.. this would need to be checked for all jars of XWiki. Concerning this batch: These are generated by me from WSDL file xwiki/trunk/lib/alexa.jar xwiki/trunk/lib/googleadwords.jar xwiki/trunk/lib/googleapi.jar xwiki/trunk/lib/flipper.jar xwiki/trunk/lib/ipresolver.jar xwiki/trunk/lib/axis-1.2RC2.jar Apache xwiki/trunk/lib/commons-discovery-0.2.jar Apache xwiki/trunk/lib/hibernate-3.0.3.jar JBoss LGPL xwiki/trunk/lib/ical4j-0.9.12.jar BSD Like licence xwiki/trunk/lib/flickrapi-1.0a7.jar BSL Licence xwiki/trunk/lib/jaxrpc-1.1.jar seems to have the same distribution licence as JavaMail and was distributed with the google API.. So I guess it is ok.. xwiki/trunk/lib/mail-1.3.2.jar see below.. If I read correctly on the JavaMail FAQ *Q:* Is the JavaMail API implementation completely free? Can I ship it along with my product? *A:* Yes. The current release of the JavaMail API implementation, is completely free and you can include it in your product. This release includes IMAP, POP3, and SMTP providers as well. Please do read the LICENSE <http://java.sun.com/products/javamail/LICENSE.txt> and ensure that you understand it. The JavaBeans Activation Framework is also free for use under a similar license. and Licence: 2. License to Distribute Software. Subject to the terms and conditions of this Agreement, including, but not limited to Section 3 (Java (TM) Technology Restrictions) of these Supplemental Terms, Sun grants you a non-exclusive, non-transferable, limited license to reproduce and distribute the Software in binary code form only, provided that (i) you distribute the Software complete and unmodified and only bundled as part of, and for the sole purpose of running, your Java applets or applications ("Programs"), (ii) the Programs add significant and primary functionality to the Software, (iii) you do not distribute additional software intended to replace any component(s) of the Software, (iv) you do not remove or alter any proprietary legends or notices contained in the Software, (v) you only distribute the Software subject to a license agreement that protects Sun's interests consistent with the terms contained in this Agreement, and (vi) you agree to defend and indemnify Sun and its licensors from and against any damages, costs, liabilities, settlement amounts and/or expenses (including attorneys' fees) incurred in connection with any claim, lawsuit or action by any third party that arises or results from the use or distribution of any and all Programs and/or Software. I don't see where the problem is.. Now we could use the gnu javamail which seems 100% compatible.. Ludovic Vincent Massol wrote: -- Ludovic Dubost XPertNet: http://www.xpertnet.fr/ Blog: http://www.ludovic.org/blog/ XWiki: http://www.xwiki.com Skype: ldubost AIM: nvludo Yahoo: ludovic