OL98: Troubleshooting Security Issues in Outlook 98
ID: Q183409
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The information in this article applies to:
SUMMARY
This article provides answers to some common questions in troubleshooting
security issues in Microsoft Outlook 98.
- I Get a Warning When I Open Messages or Attachments
- I Can't Open a Message That Was Sent to Me Using Security
- I Can't Send a Message Using Encryption
- ActiveX Controls, Java Applets and Scripts in Messages Don't Work
- When I Try to Open E-mail Messages I Get a Signature Failure Message
MORE INFORMATIONI Get a Warning When I Open Messages or Attachments
- You may need to change the security zone settings.
For steps to change your security zone setting see the section,
"Changing Your Security Zone Settings" below.
- You may need to change the setting for attachments.
For steps to change your security zone setting see the section,
"Changing the Attachment Security Setting" below.
When a secure e-mail message does not open properly, an error message
appears that describes the problem. A red X defines which part of the
certificate has a problem.
You may have to change the trust levels for the sender. In the
Certificate dialog box that appears, click Edit Trust, and then click
"Explicitly trust this certificate."
I Can't Open a Message That Was Sent to Me Using Security
When a secure e-mail message does not open properly, an error message
appears that describes the problem. A red X defines which part of the
certificate has a problem. To remedy this you may need to do one of the
following:
- You may need to change the trust levels for the sender. In the
Certificate dialog box that appears, click Edit Trust, and then click
"Explicitly trust this certificate."
- The sender's certificate may have expired. In the Certificate dialog box
that appears, click View Certificate. Click the Details tab, and then
look at the Valid From date.
I Can't Send a Message Using Encryption
To send an encrypted message to a recipient, you must have a copy of the
recipient's digital ID stored with the address in your contact list or
address book. If you have more than one entry for the recipient, you must
use the one that has the digital ID.
For additional information, please see the following article in the
Microsoft Knowledge Base:
Q182356
OL98: Encryption and Message Security Overview
ActiveX Controls, Java Applets and Scripts in Messages Don't Work
- Your security zone setting may be set to the highest level, which
disables all active content in HTML messages.
For steps to change your security zone setting see the section,
"Changing Your Security Zone Settings" below.
When I Try to Open E-mail Messages I Get a Signature Failure Message
When a secure e-mail message does not open properly, an error message
appears that describes the problem. A red X defines which part of the
certificate has a problem.
- You may have to change the trust levels for the sender. In the
Certificate dialog box that appears, click Edit Trust, and then click
"Explicitly trust this certificate."
- The sender's certificate may have expired. In the Certificate dialog box
that appears, click View Certificate. Click the Details tab, and then
look at the Valid From date.
Changing Your Security Zone Settings
- On the Tools menu, click Options.
- Click the Security tab, and then click Zone Settings.
- Click to select Medium to be warned before running potentially damaging
content, or Low to run content without warning.
Changing the Attachment Security Setting
- On the Tools menu, click Options.
- Click the Security tab.
- Click Attachment Security.
- High security (recommended) will warn you of potential security issues
with attachments.
- None (not recommended) offers no protection from potential security
problems. Use this setting only if you are sure all messages you receive
are safe.
Additional query words:
Keywords : kbdta
Version : WINDOWS:
Platform : WINDOWS
Issue type : kbhowto
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