A marketing associate at Northern Trail Outfitters is sending out several different emails to contacts.

The "Held" email send status explains why the most recent email failed to send when all contacts are subscribed and there are no issues with the email build. The Held status is applied to email addresses that have previously resulted in a hard bounce or repeatedly soft bounced. Salesforce Marketing Cloud automatically holds these emails back from sending to prevent damage to sender reputation and to maintain high deliverability standards. This is a protective measure taken by the system.