ezPhotoMail lets you email picture with resizing the image into your desired size. And Subject encoded into ISO-2022-JP so that receiver won't get garbled.

REQUIREMENTS:
In order to use this application, you need to hava an Gmail account.

FEATURES:
+ Subject encoded into ISO-2022-JP
+ Easy resizing with Resize Type: 20%, 40%, Original, Custom and more.
+ With "Custom" Resize Type, resizing the photo into desired size(in px)
+ "240x320 with padding" Resize Type is best for sending screen shot to other mobile phones.
+ Import recipient from the Address Book
+ Memorized last recipient and subject for easy use.
+ Displaying resizing size(px) of current photo
+ Pick photo from Camera Roll
+ iPhone3.0 support

*****ezPhotoMail Settings Sample*****
Gmail settings:
Login: username@gmail.com
Password: Your Gmail password

Photo settings:
Format: JPEG/PNG
Resize Type: 20%/40%/50%/80%/240x320 with padding/Original/Custom
Width(px): Your Desired Width(with Resize Type "Custom")
Height(px): Your Desired Height(with Resize Type "Custom")
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Keyword:
photo, resize, mobile, Gmail, JPG, JEPG, PING ISO-2022-JP