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var str = "## MailCore 2: Introduction ##MailCore 2 provides a simple and asynchronous Objective-C API to work with the e-mail protocols **IMAP**, **POP** and **SMTP**. The API has been redesigned from the ground up. It features:- **POP**, **IMAP** and **SMTP** support- **[RFC822](http://www.ietf.org/rfc/rfc0822.txt)** parser and generator- **Asynchronous** APIs- **HTML** rendering of messages- **iOS** and **Mac** support[![Build Status](https://travis-ci.org/MailCore/mailcore2.png?branch=master)](https://travis-ci.org/MailCore/mailcore2)## Installation ##### Build for iOS/OSX ###Read [instructions for iOS/OSX](https://github.com/MailCore/mailcore2/blob/master/build-mac/README.md).### Build for Windows ###Read [instructions for Windows](https://github.com/MailCore/mailcore2/blob/master/build-windows/README.md).### Build for Linux ###Read [instructions for Linux](https://github.com/MailCore/mailcore2/blob/master/build-linux/README.md).## Basic IMAP Usage ##Using MailCore 2 is just a little more complex conceptually than the original MailCore. All fetch requests in MailCore 2 are made asynchronously through a queue. What does this mean? Well, let's take a look at a simple example:```objc MCOIMAPSession *session = [[MCOIMAPSession alloc] init]; [session setHostname:@imap.gmail.com]; [session setPort:993]; [session setUsername:@ADDRESS@gmail.com]; [session setPassword:@123456]; [session setConnectionType:MCOConnectionTypeTLS]; MCOIMAPMessagesRequestKind requestKind = MCOIMAPMessagesRequestKindHeaders; NSString *folder = @INBOX; MCOIndexSet *uids = [MCOIndexSet indexSetWithRange:MCORangeMake(1, UINT64_MAX)]; MCOIMAPFetchMessagesOperation *fetchOperation = [session fetchMessagesByUIDOperationWithFolder:folder requestKind:requestKind uids:uids]; [fetchOperation start:^(NSError * error, NSArray * fetchedMessages, MCOIndexSet * vanishedMessages) { //We've finished downloading the messages! //Let's check if there was an error: if(error) { NSLog(@Error downloading message headers:%@, error); } //And, let's print out the messages... NSLog(@The post man delivereth:%@, fetchedMessages); }];```In this sample, we retrieved and printed a list of email headers from an IMAP server. In order to execute the fetch, we request an asynchronous operation object from the `MCOIMAPSession` instance with our parameters (more on this later). This operation object is able to initiate a connection to Gmail when we call the `start` method. Now here's where things get a little tricky. We call the `start` function with an Objective-C block, which is executed on the main thread when the fetch operation completes. The actual fetching from IMAP is done on a **background thread**, leaving your UI and other processing **free to use the main thread**.## Documentation ##* [Class documentation](http://libmailcore.com/mailcore2/api/index.html)* [Wiki](https://github.com/MailCore/mailcore2/wiki)## License ##MailCore 2 is BSD-Licensed.";
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