When emails get stuck in the outbox, it’s usually due to connectivity issues or account configuration problems. Begin by checking your internet connection; without a stable connection, emails cannot send. Sometimes, switching between Wi-Fi and mobile data (if on a smartphone) can help push the message through. Check your email provider’s status page to see if the service is down. For desktop clients, ensure the outgoing server (SMTP) settings are correct; a mismatch can stop emails from sending. Try resending the message by opening and clicking ‘Send’ again. Clearing the outbox can also help, as it may remove any stuck messages blocking others.