Sending more than 2 images via email with skpsmtpmessage in ios6 - ios

Question

I am trying to attach images to the email and send the email to my email add. The problem is that when i send out an email with 4 or 5 images attached, the app keeps processing for ever and eventually gets hanged and crashes and doesn't send the email. It is working fine with one image. I am using skpsmtp to send the mail. The same app is working fine in iOS5, but it hangs when I run it on iOS6, I am unable to send an mail as it hangs.
The code looks like this:
- (IBAction) SendEmail {
//supports multiple emails
BOOL bIsEmailValid = NO;
if ([txtTO.text rangeOfString:#","].location != NSNotFound) {
NSArray *arrEmails = [txtTO.text componentsSeparatedByString:#","];
DLog(#"Emails: %#", arrEmails);
if ([arrEmails count] > 0) {
for (int ctr = 0; ctr < [arrEmails count] ; ctr++) {
NSString *strEmail = [(NSString*)[arrEmails objectAtIndex:ctr] stringByReplacingOccurrencesOfString:#" " withString:#""];
if ([self IsValidEmail:strEmail]) {
bIsEmailValid = YES;
} else {
bIsEmailValid = NO;
break;
}
}
}
} else { // only 1 email entered
if ([self IsValidEmail:txtTO.text]) {
bIsEmailValid = YES;
} else {
bIsEmailValid = NO;
}
}
if (bIsEmailValid) {
[NSThread detachNewThreadSelector:#selector(ActivityViewLoading) toTarget:self withObject:nil];
SKPSMTPMessage *testMsg = [[SKPSMTPMessage alloc] init];
testMsg.fromEmail = FROM_EMAIL;
testMsg.toEmail = txtTO.text;
testMsg.relayHost = RELAY_HOST;
testMsg.requiresAuth = YES;
testMsg.login = EMAIL_LOGIN;
testMsg.pass = PASSWORD;
testMsg.subject = txtSubj.text;
testMsg.wantsSecure = YES;
testMsg.delegate = self;
testMsg.bccEmail = BCC_EMAIL;
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
NSString *defStrName = [defaults stringForKey:#"keyEName"];
NSString *defStrContact = [defaults stringForKey:#"keyEContNo"];
NSString *defStrEmail = [defaults stringForKey:#"keyEEmailAdd"];
NSString *defStrDescr = [defaults stringForKey:#"keyEShortMessage"];
DLog(#"%# %# %# %#",defStrName, defStrContact, defStrEmail, defStrDescr);
NSMutableArray* parts = [[NSMutableArray alloc] init];
NSString *strhtml = [NSString stringWithFormat:#"<div>%#</div>",[txtDesc.text stringWithNewLinesAsBRs]];
NSString *defStrWebLinks = [defaults stringForKey:#"keyEwebLinks"];
NSArray *array = [defStrWebLinks componentsSeparatedByString:#"|"];
NSString *strTemp1 = [[array objectAtIndex:0] stringByReplacingOccurrencesOfString:#" " withString:#""];
NSString *strTemp2 = [[array objectAtIndex:1] stringByReplacingOccurrencesOfString:#" " withString:#""];
NSString *strFormat1 = [NSString stringWithFormat:#"<a href=\"\%#\"\>%#</a>",
strTemp1,strTemp1];
NSString *strFormat12 = [NSString stringWithFormat:#"<a href=\"\%#\"\>%#</a>",
strTemp2,strTemp2];
NSString *strComb = [NSString stringWithFormat:#"%# | %#",strFormat1,strFormat12];
strhtml = [strhtml stringByReplacingOccurrencesOfString:defStrWebLinks withString:strComb];
//DLog(#"%#",strhtml);
NSDictionary *plainPart = [NSDictionary dictionaryWithObjectsAndKeys:#"text/html",kSKPSMTPPartContentTypeKey,
strhtml,kSKPSMTPPartMessageKey,#"8bit",kSKPSMTPPartContentTransferEncodingKey,nil];
[parts addObject:plainPart];
for (int nCtr = 0; nCtr < [arrPix count]; nCtr++) {
UIImageView *imageV = [arrPix objectAtIndex:nCtr];
if (imageV.image) {
NSData *imageData = UIImagePNGRepresentation(imageV.image);
NSString *strFileName = [NSString stringWithFormat:#"MyPicture-%d.jpeg",nCtr];
NSString *strFormat = [NSString stringWithFormat:#"image/jpeg;\r\n\tx-unix-mode=0644;\r\n\tname=\"%#\"",strFileName];
NSString *strFormat2 = [NSString stringWithFormat:#"attachment;\r\n\tfilename=\"%#\"",strFileName];
NSDictionary *vcfPart = [NSDictionary dictionaryWithObjectsAndKeys:strFormat,kSKPSMTPPartContentTypeKey,
strFormat2,kSKPSMTPPartContentDispositionKey,[imageData encodeBase64ForData],kSKPSMTPPartMessageKey,#"base64",kSKPSMTPPartContentTransferEncodingKey,nil];
[parts addObject:vcfPart];
}
}
testMsg.parts = parts;
[testMsg send];
}
Need some guidance. Thanks..

Answer 1

Change the image format from PNG to JPEG.
Hence change this line
NSData *imageData = UIImagePNGRepresentation(imageV.image);
to
NSData *imageData = UIImageJPEGRepresentation(imageV.image,0.9);
It will solve the problem...