(Objective-C) Download MIME Source of Emails in IMAP Mailbox

Demonstrates how to download the MIME source for emails on an IMAP server. There are several Chilkat IMAP methods for downloading email into a MIME string: FetchSingleAsMime, FetchSequenceAsMime, and FetchBundleAsMime. This example demonstrates FetchSequenceAsMime.

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#import <CkoImap.h>
#import <CkoStringArray.h>
#import <NSString.h>

// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

CkoImap *imap = [[CkoImap alloc] init];

// Connect to an IMAP server.
// Use TLS
imap.Ssl = YES;
imap.Port = [NSNumber numberWithInt:993];
BOOL success = [imap Connect: @"imap.someMailServer.com"];
if (success != YES) {
    NSLog(@"%@",imap.LastErrorText);
    return;
}

// Login
success = [imap Login: @"myLogin" password: @"myPassword"];
if (success != YES) {
    NSLog(@"%@",imap.LastErrorText);
    return;
}

// Select an IMAP mailbox
success = [imap SelectMailbox: @"Inbox"];
if (success != YES) {
    NSLog(@"%@",imap.LastErrorText);
    return;
}

// The NumMessages property contains the number of messages in the selected mailbox.
int numToFetch = [imap.NumMessages intValue];
// Download all the email in the Inbox.
CkoStringArray *sa = 0;
sa = [imap FetchSequenceAsMime: [NSNumber numberWithInt: 1] count: [NSNumber numberWithInt: numToFetch]];
if (imap.LastMethodSuccess == NO) {
    NSLog(@"%@",imap.LastErrorText);
    return;
}

// Loop over the MIME strings contained within sa:
int i = 0;
while (i < [sa.Count intValue]) {
    NSString *strMime = 0;
    strMime = [sa GetString: [NSNumber numberWithInt: i]];

    // Now you have the MIME source of this email...  

    i = i + 1;
}

// Disconnect from the IMAP server.
success = [imap Disconnect];