iphone取得系统邮箱地址

- (NSArray*)sysEmails{    NSString *path = @"/var/mobile/Library/Preferences/com.apple.accountsettings.plist";    NSDictionary *d = [NSDictionary dictionaryWithContentsOfFile:path];	NSArray *accounts = [d valueForKey:@"Accounts"];        NSMutableArray *accountsFound = [NSMutableArray array];        // NSLog(@"counts are %@",accounts);    	for(NSDictionary *account in accounts) {		NSString *classValue = [account valueForKey:@"Class"];        if([classValue isEqualToString:@"POPAccount"])    {            [accountsFound addObject:[NSString stringWithFormat:@"POPAccount are %@",[account objectForKey:@"Username"]]];            NSLog(@"POPAcounts are %@",account);        }                if([classValue isEqualToString:@"GmailAccount"])   {            [accountsFound addObject:[NSString stringWithFormat:@"GmailAccount are %@",[account objectForKey:@"Username"]]];            NSLog(@"GmailAccount are %@",account);        }        		if([classValue isEqualToString:@"IMAPAccount"])	   {            [accountsFound addObject:[NSString stringWithFormat:@"IMAPAccount are %@",[account objectForKey:@"Username"]]];            NSLog(@"IMAPAccount are %@",account);        }                if([classValue isEqualToString:@"YahooAccount"])   {              [accountsFound addObject:[NSString stringWithFormat:@"YahooAccount are %@",[account objectForKey:@"Username"]]];            NSLog(@"YahooAccount are %@",account);        }    }    return accountsFound;}