Response from Sprint eCare "Thank you for contacting Sprint together with Nextel. I apologize that you are having difficulties sending picture mail from your phone. I will be more than happy to assist you with this matter. To send picture mail from your windows mobile device you will have to send as an attachment in an email. You will need to set up and email account on your phone. Once you have set up the email account you will then be able to send as an attachment in an email. Since you will be sending as an email you will need to send in a certain format so the other phone will receive. If you are sending to another Sprint phone you will send email to firstname.lastname@example.org. Here is a list of other providers. I have also provided a link that you can visit that has a list of all provider sms email address. Cingular 10DigitPhoneNumber@mobile.mycingular.com Nextel 10DigitPhoneNumber@messaging.nextel.com T-Mobile 10DigitPhoneNumber@tmomail.net Verizon 10DigitPhoneNumber@vtext.com ALLTEL 10DigitPhoneNumber@message.alltel.com. Here is link for the list http://www.supcast.com/providers.txt. The other phone will receive as a regular picturemail text message you will just have to send a different way." Hope this helps. I'm updating my address book with additional email addresses.