<dependency>
  <groupId>org.apache.commons</groupId>
  <artifactId>commons-email</artifactId>
  <version>1.6-SNAPSHOT</version>
</dependency>

'org.apache.commons:commons-email:jar:1.6-SNAPSHOT'

<dependency org="org.apache.commons" name="commons-email" rev="1.6-SNAPSHOT">
  <artifact name="commons-email" type="jar" />
</dependency>

@Grapes(
@Grab(group='org.apache.commons', module='commons-email', version='1.6-SNAPSHOT')
)

compile 'org.apache.commons:commons-email:1.6-SNAPSHOT'

libraryDependencies += "org.apache.commons" % "commons-email" % "1.6-SNAPSHOT"

[org.apache.commons/commons-email "1.6-SNAPSHOT"]