Commons Email 1.4 发布，Java 邮件工具包

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#深圳# 6月10日 亚马逊AWSome Day云计算免费培训报名中
　　Commons Email 1.4 发布了，该项目是Apache的Commons子项目下的一个邮件客户端组件，它是基于JavaMail的，大大简化了邮件的收发操作。
　　与 1.3.3 版本比较主要改进包括如下几个方面：
　　== Compatibility ==
　　
　　* Java 5 or later is required (unchanged since 1.3).
　　
　　* JavaMail dependency has been upgraded to version 1.5.2,
　　as a consequence, the maven dependency has changed to:
　　
　　
　　com.sun.mail
　　javax.mail
　　1.5.2
　　
　　
　　== New Features ==
　　

　　* Added getter for the bounce address of an email to>　　Issue: EMAIL-146. Thanks to Alexander Lehmann.
　　
　　* Added support for mapping of content-ids to DataSource in "MimeMessageParser".
　　Issue: EMAIL-141. Thanks to Stephen Kruger.
　　
　　== Updates ==
　　
　　* Update Oracle JavaMail dependency from 1.4.5 to 1.5.2.
　　Issue: EMAIL-144.
　　
　　== Fixed Bugs ==
　　
　　* "Email" threw an "EmailException" when trying to send the email if neither a from

　　nor bounce address was specified,>　　Issue: EMAIL-149. Thanks to Richard DiCroce.
　　
　　* "ImageHtmlEmail" failed to embed attachments if their data source name was null.
　　Issue: EMAIL-151. Thanks to Andreas Kohn.
　　
　　* Html emails did not have the correct content-type set when using the Apache Geronimo
　　JavaMail implementation v1.8.x.
　　Issue: EMAIL-147. Thanks to Can Eskikaya.
　　
　　* An "HtmlEmail" with both, an html and plain text content but no attachments or embedded
　　images will now be created with mimetype "multipart/alternative" instead of "multipart/mixed".
　　Issue: EMAIL-142. Thanks to Marcin Tomiak.