Troubleshooting Email Issues: Why Emails Don't Send and How to Fix Them


  • Imagine you’ve crafted the perfect email, hit send, and… nothing. Your important message seems to have vanished into the digital abyss.
  • This happens more often than we’d like, and it can be caused by a variety of reasons (why email won’t send, why email stuck in outbox, why email goes to spam).
  • Fear not! This blog post will equip you with the knowledge to troubleshoot common email issues and get your messages delivered successfully.

Common Reasons Emails Don’t Send

  • Recipient Address Issues (why email won’t send):
    • A typo in the recipient’s email address is the most common culprit. A simple misplaced letter can send your email on a wild goose chase.
    • The recipient’s mailbox might also be full or inactive, causing your email to bounce back.
  • Sender Email Server Issues (why email won’t send, why email stuck in outbox):
    • Incorrect email server settings, like the SMTP server or port number, can prevent your email from leaving your own system.
    • Sometimes, your firewall or antivirus software might be overzealous and block your outgoing mail server.
    • Your email account might also be exceeding its storage quota, leading to sending restrictions.
  • Email Content Issues (why email goes to spam):
    • Emails can be flagged as spam if they trigger spam filters with excessive use of capital letters, exclamation points, or certain keywords.
    • Including large attachments that exceed the recipient’s server limit can also land your email in the junk folder.

Troubleshooting Steps (How to Fix Them)

  • Verify Recipient Address (why email won’t send):
    • Take a deep breath and double-check the recipient’s email address for any typos.
    • Consider sending a test email to a different address to confirm everything is working on your end.
  • Check Email Server Settings (why email won’t send, why email stuck in outbox):
    • Your email provider’s website should have the correct SMTP server and port information. Look for it in their help section.
    • Temporarily disable your firewall or antivirus software to see if it’s blocking the connection. If it is, you’ll need to adjust your security settings to allow outgoing emails from your email client.
    • If storage quota seems like the issue, contact your email provider to see about upgrading your plan.
  • Review Email Content (why email goes to spam):
    • Avoid writing your emails in ALL CAPS or using excessive exclamation points!!!! This can make your email look like spam.
    • Compress large attachments before sending, or consider using cloud storage services like Google Drive or Dropbox to share them.

Additional Tips and Prevention

  • Regularly clean up your inbox and delete unnecessary emails to avoid exceeding storage limits.
  • Maintaining a good sender reputation by avoiding spammy practices will help ensure your emails reach their intended recipients.
  • Consider using a professional email address for business communication, as free email addresses are more likely to be flagged as spam.


  • Troubleshooting email issues doesn’t have to be a headache. By understanding the common causes and following these simple steps, you can get your emails delivered and avoid communication breakdowns.

Remember, a little vigilance can go a long way in ensuring your emails reach the right inbox.

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