In the Admin Centre > People tab, you may see a little red envelope next to some profiles. This means that the last email sent to their email address bounced. If you hover over the red envelope, it will tell you when this bounce occurred.
Our help page on Email deliverability and whitelisting has more information on why this can happen.
It can mean that the email address has been added to our Sparkpost suppressions list and will need to be removed by Appraisd.
We use Sparkpost to tell Appraisd when an email we have sent has hard bounced. This usually happens when the user's email address has been entered into Appraisd incorrectly or when an email address has been added to Appraisd before it's been activated by your IT team. Without this feature, we'd see many more people unable to log in or receive alerts due to incorrect email addresses.
If you see the red envelope on someone's profile, but they do have the correct email address in Appraisd, please email us at email@example.com and we can remove them from our suppressions list.
Once they receive an email successfully, the red envelope will disappear.