Gmail Contacts from Label to Sheets

getDailyQuota.gs

function getDailyQuota() {
  var quotaRemaining = MailApp.getRemainingDailyQuota()
  console.log("Daily Quota Remaining: " + quotaRemaining);
}

getEmailsWithLabel.gs

function getEmailsWithLabel() {
  var label = GmailApp.getUserLabelByName("Recruiter");
  var threads = label.getThreads();
  var sheet = SpreadsheetApp.getActiveSpreadsheet().getActiveSheet();
  var lastRow = sheet.getLastRow();
  var existingEmails = [];

  // If we have existing emails in the sheet, grab those
  if (lastRow > 1) {
    existingEmails = sheet.getRange(2, 2, lastRow - 1).getValues().flat();
  }

  var newEmails = [];

  sheet.clear(); // Clear existing content
  sheet.appendRow(["Sender", "Email Address"]);

  for (var i = 0; i < threads.length; i++) {
    var messages = threads[i].getMessages();
    for (var j = 0; j < messages.length; j++) {
      var from = messages[j].getFrom();

      // Make sure the email matches this pattern, which is similar to <foo@bar.com>
      var emailMatch = from.match(/<(.+)>/);

      if (emailMatch) {
        var email = emailMatch[1];

        // Sometimes names have quotes in them, strip those. e.g. - Turn "Dave" into Dave
        var sender = from.split("<")[0].trim().replace(/"/g, ""); // Remove quotes from sender name

        // Only add unique emails to the sheet, not dupicates
        if (!existingEmails.includes(email) && !newEmails.includes(email)) {
          newEmails.push(email);
          sheet.appendRow([sender, email]);
        }
      }
    }
  }
}

sendContactEmails.gs

function sendContactEmails() {
  var quoataRemaining = MailApp.getRemainingDailyQuota()
  console.log("Remaining Daily Quota: " + quoataRemaining);
  if (quoataRemaining > 0) {
    var sheet = SpreadsheetApp.getActiveSpreadsheet().getActiveSheet();
    var lastRow = sheet.getLastRow();
    var data = sheet.getRange(2, 1, lastRow - 1, 2).getValues(); // Get email addresses and names

    for (var i = 0; i < data.length; i++) {
      var email = data[i][1];
      var fullName = data[i][0];
      var firstName = fullName.split(" ")[0]; // Extract first name
      var personalizedName = firstName || "there";

      var subject = "YOUR SUBJECT";
      var body = 'Hello ' + personalizedName + ',\n\n' +
                "Your engaging email contents here.\n\n" +
                'Thanks,\n\n' +
                'YOURNAME';

      MailApp.sendEmail(email,  subject, body);
    }
  }
}

Hey mate, for some reason when using this code it stops at 413 emails when i know there is just over 1000 emails to grab. We searched the google docs file for multiple emails in the label and it wasn't there, just wondering why it stops at 413, and if we can get it to do all of them, thanks