BF2S Forums Resolution Software

What's your email service provider say?  Each email service will have different limits as to what you can do.

How many pictures you can send probably depends on the file size of the pictures.  For example, if you use Gmail, any given email can only have about 10Mb of attachments.  Mails with more than that attached won't send.

10 pics is a lot for any single email, especially if you want to send decent quality.  You might want to consider setting up a Flickr or Photobucket account and sending an email with links to the pictures there instead.

You could try using whatever image manipulation software you have available to reduce the quality/resolution of your pictures until they fit under the limit you need to meet; I use Photoshop for this, but there are probably plenty of other programs that'll do it for you, try a search engine to find something.