Objective-C

Move Selected Emails to another Mailbox Folder

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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. Objective-C

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

BOOL success = NO;

//  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];
success = [imap Connect: @"imap.example.com"];
if (success == NO) {
    NSLog(@"%@",imap.LastErrorText);
    return;
}

//  Login
success = [imap Login: @"myLogin" password: @"myPassword"];
if (success == NO) {
    NSLog(@"%@",imap.LastErrorText);
    return;
}

//  Select an IMAP mailbox
success = [imap SelectMailbox: @"Inbox"];
if (success == NO) {
    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 true.
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.
CkoEmail *email = [[CkoEmail alloc] init];
int i = 0;
while (i < numEmails) {
    //  Fetch the email by sequence number.
    success = [imap FetchEmail: NO msgId: i + 1 bUid: NO email: email];
    if (success == NO) {
        NSLog(@"%@",imap.LastErrorText);
        return;
    }

    //  If it is decided to move the email, add the sequence number to mset, like this:
    [mset InsertId: 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 == NO) {
        NSLog(@"%@",imap.LastErrorText);
        return;
    }

}

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