Final answer:
To add several colleagues whom you e-mail frequently, you can create a contact group.
Step-by-step explanation:
If you have several colleagues whom you e-mail frequently, you can add them to a contact group.
A contact group is a way to organize and manage a collection of contacts in email applications. It allows you to easily send messages to multiple contacts at once by simply selecting the group instead of manually entering each individual email address.
For example, if you frequently collaborate with a specific team at work, you can create a contact group named 'Work Team' and add the email addresses of all team members to the group. Then, when you need to send an email to the entire team, you can simply select the 'Work Team' group from your contacts and the email will be sent to all members.