There are lots of reasons attachments cause needless problems. Large files clog up your own email system (check your "sent items" folder to see) and the recipient's inbox. If you send a 6MB picture to someone whose email box is capped at 10MB, your message could very well have just blocked that person from receiving important messages until they clean up their mailbox. When sending a file to someone within our group, save the file to the P: drive and send the hyperlink instead. For external recipients, use our shared Dropbox account.