Fetch a Range of POP3 Messages

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Demonstrates the Chilkat MailMan.FetchRange method, which retrieves a range of messages from the POP3 mailbox and appends them to an EmailBundle. The arguments are keepOnServer, headersOnly, numBodyLines, a zero-based inclusive startIndex and endIndex, and the EmailBundle. This example fetches the first five messages.

#import <CkoMailMan.h>
#import <CkoEmailBundle.h>
#import <CkoEmail.h>

BOOL success = NO;

//  Demonstrates the MailMan.FetchRange method, which retrieves a range of messages from the
//  POP3 mailbox and appends them to an EmailBundle.  The arguments are keepOnServer,
//  headersOnly, numBodyLines, startIndex, endIndex, and the EmailBundle.  The indexes are
//  zero-based and inclusive.

CkoMailMan *mailman = [[CkoMailMan alloc] init];

//  Configure the POP3 server connection.
mailman.MailHost = @"pop.example.com";
mailman.MailPort = [NSNumber numberWithInt:995];
mailman.PopSsl = YES;
mailman.PopUsername = @"user@example.com";
mailman.PopPassword = @"myPassword";

//  Fetch the first 5 messages (indexes 0 through 4), full bodies, leaving them on the server.
//  keepOnServer=cktrue, headersOnly=ckfalse (fetch the entire message).
//  Note: numBodyLines only applies when headersOnly is true (it sets how many lines of the
//  body to include along with the headers).  When headersOnly is false, the entire message
//  is fetched and numBodyLines is ignored.
CkoEmailBundle *bundle = [[CkoEmailBundle alloc] init];

success = [mailman FetchRange: YES headersOnly: NO numBodyLines: [NSNumber numberWithInt: 0] startIndex: [NSNumber numberWithInt: 0] endIndex: [NSNumber numberWithInt: 4] bundle: bundle];
if (success == NO) {
    NSLog(@"%@",mailman.LastErrorText);
    return;
}

int n = [bundle.MessageCount intValue];
NSLog(@"%@%d%@",@"Fetched ",n,@" messages.");

CkoEmail *email = [[CkoEmail alloc] init];
int i;
for (i = 0; i <= n - 1; i++) {
    success = [bundle EmailAt: [NSNumber numberWithInt: i] email: email];
    NSLog(@"%@",email.Subject);
}

//  Note: Explicitly connecting/authenticating is optional.  Chilkat MailMan automatically
//  connects and authenticates -- using the property settings above -- whenever a server
//  operation requires it.  Calling the explicit connect/authenticate methods can still be
//  helpful to determine whether a failure occurs while connecting or while authenticating.