Elements will warn you when you attempt to send e-mail with a size over 1 MB. This is because some Internet Service Providers have an attachment size limit (sometimes as low as 1 MB), so it's a good idea to keep the total under 1 MB when sending email to dial up users. If you know all your recipients have high-speed connections, it is safe to continue sending the email.
You may have to wait a few moments if there are a lot of files to process, but soon you'll see your default mail program's message window with the files already attached. Album fills in the subject line and message body with some default text which you are free to edit.
Quick Tip: How to Customize the Baked-In Text on Emails Sent from Photoshop Elements
