📧 Troubleshooting Send/Receive Issues in Mailbird

If you're having trouble sending or receiving emails in Mailbird, or if your inbox isn’t syncing properly, don’t worry. This article outlines the most common causes and provides effective solutions to help restore normal email functionality.

⚠️ You may need to try more than one of the steps below to fully resolve the issue.

🛡️ Check Your Antivirus or Firewall Settings

One of the most frequent causes of send/receive issues is antivirus or firewall software blocking Mailbird.

Recommended Steps:

• Whitelist Mailbird in your antivirus, security software, or firewall settings.

• If you're using Windows Defender, follow the specific instructions for your operating system:

  • How to add Mailbird as an exception in Windows 10

  • How to add Mailbird as an exception in Windows 11

If you’re not sure how to whitelist Mailbird:

1. Temporarily disable your antivirus/firewall software.

2. Try sending or receiving an email in Mailbird.

3. If it works, contact your antivirus provider for instructions on how to whitelist Mailbird permanently.

⚠️ Without whitelisting, Mailbird may not function properly due to restricted access triggered by your antivirus or security software.

🔐 Update Your Email Password in Mailbird

If you've recently changed the password for your email account, you need to update it in Mailbird as well.

Here's how:

1. Click the Mailbird Menu (three horizontal lines in the top-left corner).

2. Select Settings.

3. Click on the Accounts tab.

4. Double-click the account experiencing problems.

5. Update the password to match your new one.

📬 Another Email Client Is Using POP3

If another email client is set up as POP3, it may be retrieving emails from your email server before Mailbird can access them.

Solution:

• Change the other client’s configuration to IMAP.

• Keep Mailbird as your only POP3 client to ensure that it receives all incoming mail.

🌐 You're Using a Proxy Connection or a VPN

Proxy connections or VPNs can interfere with Mailbird’s ability to sync emails.

Solution:

• Disable the proxy or VPN connection temporarily.

• Try sending or receiving emails again.

🆘 Still Having Trouble?

If none of the above steps solve the issue, please contact our Support Team using the Contact Form. To help us resolve your issue more rapidly, please include your log file in the support request. You can refer to this other article for instructions on how to locate your log file.