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(Objective-C) Async Upload (Append) Email to an IMAP Mailbox

Use the AppendMailAsync method call to append an email to an IMAP mailbox.

Chilkat Objective-C Library Downloads

MAC OS X (Cocoa) Libs

iOS Libs

#import <CkoImap.h>
#import <CkoEmail.h>
#import <CkoTask.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: @"MY-IMAP-DOMAIN"];
if (success != YES) {
    NSLog(@"%@",imap.LastErrorText);
    return;
}

// Login
success = [imap Login: @"MY-IMAP-LOGIN" password: @"MY-IMAP-PASSWORD"];
if (success != YES) {
    NSLog(@"%@",imap.LastErrorText);
    return;
}

// Create a simple email with 2 recipients.
CkoEmail *email = [[CkoEmail alloc] init];
email.From = @"support@chilkatsoft.com";
[email AddTo: @"Chilkat Sales" emailAddress: @"sales@chilkatsoft.com"];
[email AddTo: @"Chilkat GMail" emailAddress: @"chilkat.support@gmail.com"];
email.Body = @"This is a test email.";
email.Subject = @"This is a test email.";

// Imagine we've sent this email via SMTP, and now we want to 
// save the email to our "Sent" mailbox.  On GMail, the mailbox name
// for sent email is "[Gmail]/Sent Mail".

// Call the async version of the AppendMail method to return a task object.
CkoTask *task = [imap AppendMailAsync: @"[Gmail]/Sent Mail" email: email];
if (imap.LastMethodSuccess != YES) {
    NSLog(@"%@",imap.LastErrorText);
    return;
}

// Schedule the task for running on the thread pool.  This changes the task's state
// from Inert to Live.  The task is now running...
success = [task Run];
if (success != YES) {
    NSLog(@"%@",task.LastErrorText);

    return;
}

// -------------------------------------------------------------------------------
// The following is a general note that applies to all programming languages:
// -------------------------------------------------------------------------------
// Your application can keep a reference to the task object and periodically check back later to see if it's finished.
// If your programming language is one that supports callbacks, then the TaskCompleted callback can
// be setup to be called when the task completes.  (See the "Async" category on example-code.com for more information.)
// 
// NOTE: This is very important:  A TaskCompleted callback runs in the background thread.  
// (All callbacks from an async task, such as AbortCheck, PercentDone, ProgressInfo, etc. are in the background thread.) 
// An application that uses TaskCompleted must be very careful.  
// For example, user interface elements (such as labels, text boxes, etc.) may not be directly
// accessible from a background thread, and could crash the application if directly accessed.  Also, attempting to debug
// code running in a background thread from an IDE, especially an older IDE (such as VB6) is likely to crash the IDE.
 

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