Most tools in Sakai can send an email, (Announcements, Assignments, Tests & Quizzes, etc.). Mailinator allows you to make up any name and use @mailinator.com to be added to the username and that address can then receive emails. More information on the Public Mailinator Inbox
If you create your own users on Sakai, then add the mailinator email address if your users don’t already have an email address. If you use a site that has been automatically created in Sakai, the majority of those users already have a mailinator address. If you create your own site, you can add some users from the Admin > Users page. As you can see in the screenshot below, the User Id is used for the mailinator address.
To test this:
Log in as admin and go to the Users page
Either add your own user or copy the ID from one of the existing users with a mailinator address
Add the user to your site
Select to send an email when you add the user to your site
Go to https://www.mailinator.com/ and enter the ID of the user in the textbox to Enter Public Mailinator Inbox and click Go
That user’s Inbox loads and you will see the email from Sakai
To check any other user’s email, just replace the current username/ID with the new one and click Go
Some things to keep in mind when you use mailinator:
All emails are automatically deleted after a few hours
Mailinator can only be used to receive emails
Emails cannot be sent from mailinator or using the mailinator address