Product Support

F-Secure Internet Security 2009 - Back to FAQ list

E-mail / Spam Issues

Q5. Why does Thunderbird freeze when sending and receiving e-mail?

When Real-time Scanning scans your mailboxes, it may cause your Thunderbird to freeze. You can try the following:

1. Exclude your mailbox from Real-time Scanning. For instructions, see How can I exclude a file or folder from Real-time Scanning?. All e-mail messages in your mailbox are excluded from real-time scans until you remove the mailbox from the exclusions list.
2. Check that the security level of Internet Shield is set to Normal. For instructions, see How do I change the security level in the F-Secure Internet Security 2009 product?.