I add .jpg this way:
UIImage *sentPic = self.image;
NSData *imageData = UIImageJPEGRepresentation(sentPic, 1);
[picker addAttachmentData:imageData mimeType:@"image/jpg" fileName:@"pic.jpg"];
I change it to “image/gif”.But it doesn’t work fine. Th Gif is just a still image in the mail.
This would add it as attachment, but I’m not sure if that’s what you want, or you want to display the image inside the message?