How to solve a problem with 2FA code

Have you ever tried to log in only to realize the 2FA code never arrived in your inbox? This frustrating issue often happens because your email provider’s security filters are blocking the message. The good news? It’s usually an easy fix.

Why does this happen?

Two-factor authentication (2FA) codes are sent automatically, but some email domains — especially privacy-focused ones — have strict spam filters. If the sender isn’t "whitelisted" (approved), their emails might get filtered out before you even see them.

How to fix It

The solution depends on your email provider. Here’s what to do for the most common ones:

• Tutanota/Tuta or Outlook?
  Check their guide on whitelisting emails:
  How to Whitelist Emails in Tutanota/Outlook
• Using Proton Mail or Gmail?
  Follow these steps to ensure 2FA codes reach you:
  Proton Mail & Gmail Whitelisting Guide

Still not working?

If the problem persists:

1. Check your spam/junk folder — sometimes the email gets misclassified.
2. Contact support — the service sending the code might have delivery issues.
3. Try a different email — some domains block automated emails more aggressively than others.

By whitelisting the sender, you’ll ensure those crucial 2FA codes land in your inbox — keeping your accounts secure without the hassle.