You might see email groups where some members will not receive emails if you email that group.
The status of the email address determines this. Every address's status is "Unknown" until an email from the platform is sent to that address. Once the email is sent, the status changes.
Exception: There are two cases where the status will not be "Unknown" before any email is sent from the platform.
If there is no email address on the record, then the status will be "Not available" and
If someone has opted out of receiving emails, their status will be "Unsubscribed."
Here's a detailed explanation of different email statuses.
Here are the different statuses that result in a profile not receiving emails —
Status | Description | Examples |
Unsubscribed | Only transaction emails like receipts and confirmations are allowed - This happens when a new record is added to the platform and either the admin has not set them to receive emails or the user has not consented to use this email address for communication purposes. | 
|
Unsubscribed | The user unsubscribed this email from communication - This happens when the member has unsubscribed from receiving emails sent to this group or from all email communications from this platform. |
|
Bounced | Our system has attempted to send the email, but it was not delivered. |  |
Invalid | The email address does not exist. |  |
Email is not available | There is no email address on the record. |  |