For groups of people, you can also do, [service-name]@[user-name].my-domain.com to provide everyone the same capability. Email aliases ([user-name]+[service-

For groups of people, you can also do, [service-name]@[user-name].my-domain.com to provide everyone the same capability. Email aliases ([user-name]+[service-name]@my-domain.com) isn't the best solution when spammers can remove the alias part (+[service-name]) and you can't know who leaked it.