Apparently Mail application supports 2nd url scheme - message://
which ( I suppose) allows to open specific message if it was fetched by the application. If you do not provide message url it will just open mail application:
NSURL* mailURL = [NSURL URLWithString:@"message://"];
if ([[UIApplication sharedApplication] canOpenURL:mailURL]) {
[[UIApplication sharedApplication] openURL:mailURL];
}
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…