'io.vertx:mod-mailer:2.0.0-beta1'
<dependency>
<groupId>io.vertx</groupId>
<artifactId>mod-mailer</artifactId>
<version>2.0.0-beta1</version>
</dependency>
<dependency org="io.vertx" name="mod-mailer" rev="2.0.0-beta1"/>
"io.vertx", "mod-mailer", "2.0.0-beta1"