If your recipient's inbox is full or the email doesn't exist, your sent email will bounce.
If not everyone in your segment got the email, open the campaign's Recipients tab and click Not delivered to see why. The Action column shows one of the statuses below for each recipient.
Email bounced
The recipient's server didn't accept the email, and the Action column shows the reason. See Reasons why your emails aren't being delivered. To keep bounced addresses out of your next campaign, see How can I avoid sending newsletters to email addresses that have bounced?
Previous bounce
The address is on your bounce list after an earlier hard bounce, so the email wasn't sent. If the address is correct, you can remove the bounce: click Unbounce on the recipient's row to take the address off the bounce list. Each month you can unbounce up to 2% of your total number of contacts (1 if you have fewer than 50 contacts). See also Q: Can I remove the Bounce status on a contact?
Invalid email
Invalid email means that the server has not been able to identify the email address, the address contains invalid characters (parenthesis, colon, semicolon, etc.), or is written incorrectly.
Missing email
Unfortunately, if your contact is missing an email address we can't send them any emails. Go to the contact page and edit the contact’s information.
Duplicate
Another recipient in the campaign has the same email address, so the email was sent only once.
Email rejected
The email service refused to send the email to this address.
Unverified sending domain
The email wasn't sent because the sender's email domain isn't verified with Upsales. Verify your sending domain.
Inactive contact
The contacts that are marked as inactive are sorted out before an email campaign is sent and will not receive your email. They will still be visible in your segment and recipient list.
You can reactivate the contact on their Contact page.
Previously unsubscribed
The contact has unsubscribed from your emails and will not receive your email campaigns. To list these contacts, click Not delivered on the Recipients tab and select Previously unsubscribed.
Overworked
The contact has already received the maximum number of emails set in Email settings, and the contact was excluded with Exclude from email when the campaign was set up.
Unknown error
A technical error stopped the email from being sent.