You can make sure colleagues receive an e-mail notification of your comment, by @mentioning them in your comment. It's pretty easy, here's how you can mention your colleagues:
@mentioning a colleague in a comment
When you're viewing an application, start by typing your comment.
Mention a colleague by using the @ symbol. For example: @RobertKelly. If you just type the '@' symbol, notice you can pick a team member out of a drop down list
You can also use @team to notify everyone in the hire team. You can use @everyone to notify not only the team, but also every admin in Homerun
Everyone you are mentioned, will receive a notification by e-mail
If you have received an e-mail because you were mentioned in Homerun, click the 'View comment' button to see the comment in Homerun. You can also reply to the e-mail, the reply will be automatically added as a comment.