<dependency>
  <groupId>com.icegreen</groupId>
  <artifactId>greenmail-parent</artifactId>
  <version>1.6.8</version>
  <type>pom</type>
</dependency>

implementation 'com.icegreen:greenmail-parent:1.6.8'

implementation("com.icegreen:greenmail-parent:1.6.8")

libraryDependencies += "com.icegreen" % "greenmail-parent" % "1.6.8"

@Grapes(
  @Grab(group='com.icegreen', module='greenmail-parent', version='1.6.8')
)

<dependency org="com.icegreen" name="greenmail-parent" rev="1.6.8" />

[com.icegreen/greenmail-parent "1.6.8"]

'com.icegreen:greenmail-parent:jar:1.6.8'