Welcome to Tom's Hardware Forums!
There are two ways for you to send photos via email.
1. Enroll in a free online photo uploading service. I use Nikon's Picturetown (2 GBs of photos limit for free accounts). Follow instructions and create an album and name the album. Then upload all the photos you want to that album. Then share that album with your friends by entering their email addresses. Nikon will send them all a link and they can open that link and download whatever photos they desire.
http/mypicturetown.com/?lang=en_US
There are other free services too, like Photobucket, Flickr, etc.
2. Send multiple emails with each email less than 5 MB (this is ok for about 5 to 10 photos)