BTW, I checked the tomcat log file. When the mail was send failed, the log is: javax.mail.SendFailedException: Invalid Addresses; nested exception is: com.sun.mail.smtp.SMTPAddressFailedException: 504 <tian_lixing>: Sender address rejected: need fully-qualified address So ,how to make the address fully-qualified? Thanks. Hi ,all. I have added SendPageByEmail Application, but when I sent a mail it told me "The page has not been sent. There might be an error in the email addresses you entered". In the page ,(http://code.xwiki.org/xwiki/bin/view/Applications/SendPageByEmailApplicati on) it said that In order to work properly, it requires the following conditions to be met : * The MailSender <http://code.xwiki.org/xwiki/bin/view/Plugins/MailSenderPlugin> plugin must be up & running on your wiki instance * You must have a SMTP server properly configured * The panel has to be saved by a user with programming rights. I have set up an Outgoing SMTP Server, and I think SMTP server work well. So the problem maybe MailSender plugin. How to install the MailSender plugin? I think I don't need to install it, since I use XWiki Enterprise 1.5 which has contained this plugin. http://code.xwiki.org/xwiki/bin/view/Plugins/MailSenderPlugin) _______________________________________________ users mailing list users(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/users