Quick Heal Total Security Slowing Outlook Send/Receive Performance

If you're experiencing delays while sending or receiving emails in Microsoft Outlook, Quick Heal Total Security’s built-in Email Protection and Real-Time Scanning features might be the cause. This article outlines how to adjust Quick Heal settings to improve Outlook performance without compromising core security.

? Step-by-Step Solutions

1. Disable Email Scanning (SMTP/IMAP/POP)

Quick Heal scans each incoming/outgoing mail, which can slow down Outlook.

• Open Quick Heal Total Security

• Navigate to: Protection → Email Protection

• Uncheck:

  • Scan outgoing mails

  • Scan incoming mails

  • (Optional) Scan SSL connections

• Save settings and restart Outlook.

2. Exclude Outlook Data Files from Scanning

Outlook constantly accesses .ost and .pst files, which Quick Heal may slow down if scanned live.

• Go to: Protection → Scan Settings → Exclude Files & Folders

• Add folder paths like:
  C:\Users\<YourName>\AppData\Local\Microsoft\Outlook\

• Save changes.

3. Exclude .PST and .OST Extensions

This reduces file-based interference.

• Go to: Protection → Scan Settings → Exclude File Extensions

• Add: .pst, .ost

• Click OK.

4. Whitelist Outlook in Firewall/Trusted Applications

This ensures Quick Heal doesn’t slow or block Outlook's network activity.

• Go to: Settings → Internet & Network → Firewall/Trusted Applications

• Add Outlook.exe to trusted list.

• Also add your mail server IP/domain to the Network Exceptions list.

5. Enable Silent Mode (Optional for Temporary Testing)

Silent Mode reduces Quick Heal's intervention during troubleshooting.

• Right-click the Quick Heal icon in the taskbar

• Select Enable Silent Mode

✅ Summary Table

? Final Tip:

After applying these changes, test Outlook again. If the performance improves significantly, it confirms Quick Heal was delaying mail traffic.