Sets the maximum size allowed by your email provider and attach photos and videos how many you want up to the capacity available.
The application works on both 3G and Wi-Fi. To send emails with large attachments is recommended the use of Wi-Fi. The costs of the connection depends on the carrier charges in use.
Device limits (*maximum attachments size):
iPhone 3G / iPod touch 2G / iPod touch 3G ----> 8 MB
iPhone 3Gs / iPad / iPod touch 4G ----> 25 MB
iPhone 4 / iPhone 4S / iPad 2 ----> 50 MB
*understood not as a dimension set by the provider, but the application.