Yesterday I tried to send some files to almost 50 email addresses at the same time! Later I got 7 new emails that said the 'The email failed to deliver to the following recepient"! Now i'm worried, wondering is there a problem with outlook, or with my outlook profile, because I kept trying but my email was just not being sent  to specifically those 7 people! I would be grateful if you can provide me some assisstance

Thank you