I had a look through the forums and couldn't see a similar issue. I have just tried on my 8320 Curve running 4.5 on Orange UK to send a photo to my photobucket email address for upload.
I take the photo, select "send as email" then I get the error message "No message services configured. You will only be able to Save Draft".
... just to add, i can receive emails (I just sent a test one) on my Curve instantly and PIN msgs work fine too. It also seems to be any emails rather than just ones with photos - is this likely to be a network thing?
Can you send email? Go into options > advanced > service books and make sure you have 2 service books for each email address. If you don't log into your BIS site and resend service books.
Posted from my CrackBerry at wapforums.crackberry.com