(Objective-C) Move Selected Emails to another Mailbox Folder

Downloads emails one by one in a selected mailbox, decides which emails are to be moved, and then moves the set of messages to another mailbox folder.

Chilkat Objective-C Library Downloads MAC OS X (Cocoa) Libs iOS Libs

#import <CkoImap.h>
#import <CkoMessageSet.h>
#import <CkoEmail.h>
#import <NSString.h>

// This example requires 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;
}

// Normally, when an email is downloaded, its "Seen" flag is automatically set.
// We don't want our program to be interfering with the "Seen" flags.
// To do this, set the PeekMode to YES.
imap.PeekMode = YES;

// After selecting the mailbox, the NumMessages property
// will contain the number of emails in the mailbox.
// When sequence numbers (not UIDs) are used to reference emails,
// they range from 1 to N, where N is the number of messages in the mailbox.
// This example will download the headers by sequence numbers.
int numEmails = [imap.NumMessages intValue];

CkoMessageSet *mset = [[CkoMessageSet alloc] init];

// Indicate that mset contains sequence numbers, not UIDs.
mset.HasUids = NO;

// Fetch each email and decide for each if it is to be moved
// to a particular other mailbox.  If so, we'll add the sequence number to
// the mset, and then move all emails in the mset to the other mailbox.
int i = 0;
while (i < numEmails) {
    // Fetch the email by sequence number.
    CkoEmail *email = [imap FetchSingle: [NSNumber numberWithInt: (i + 1)] bUid: NO];
    if (imap.LastMethodSuccess != YES) {
        NSLog(@"%@",imap.LastErrorText);
        return;
    }

    // If it is decided to move the email, add the sequence number to mset, like this:
    [mset InsertId: [NSNumber numberWithInt: (i + 1)]];

}

// If there are emails in mset to be moved, then do it..
if ([mset.Count intValue] > 0) {
    NSString *destFolder = @"Inbox/SomeOtherFolder";
    // Assuming your IMAP server supports the feature that allows for messages to be moved to another folder...
    success = [imap MoveMessages: mset destFolder: destFolder];
    if (success != YES) {
        NSLog(@"%@",imap.LastErrorText);
        return;
    }

}

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