The postman plugin allows you to send emails from within your build. Goals are available to send mails if a certain condition is met during the build. Or you can just fire a mail when ever you like.
The send-mail goal allows you to send a mail with a list of attachments. Where surefire-mail sends you a mail if the tests failed, this is usefull if for any reason you have to complete the build even there are test failures. taglist-mail sends you a mail if the org.codehaus.mojo:taglist-maven-plugin has found some tags/tokens in the source.