Hi,
The issue you are reporting can occur for various reasons. I recommend you try following steps.
Step 1: Temporarily uninstall anti-virus and firewall programs.
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Anti-virus and firewall programs often cause conflicts with the system and cause this issue. I recommend that you temporarily uninstall them during the troubleshooting.
Note: Please uninstall them rather than just disable them. Some anti-virus or firewall programs will still be running after you disable them. You can install them back after you've finished
the troubleshooting.
Please disable Windows Firewall too.
1. Open Control Panel and double click Security Center.
2. Click the Windows Firewall link and choose Off (not recommended).
3. Click OK to save changes.
Test if you can reply or forward email now. Try next step if issue persists.
Step 2: Create a new Outlook profile
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A corrupted Outlook profile can also cause this issue, follow these steps to create a new one.
1. Close Outlook.
2. Click Start menu-> Control Panel. If Control Panel is not in Classic View, click Switch to Classic View, and then double-click the Mail icon.
3. Click Show Profiles and then click Add. In the New Profile dialog box, type a descriptive name for the new profile in the Profile Name box, and then click OK.
4. In the E-mail Accounts dialog box, click "Add a new e-mail account", and then click Next.
5. Select the appropriate server type for your e-mail account, and then click Next.
6. Fill in the appropriate information as prompted, and then click Next and Finish as needed.
7. Click the "Prompt for a profile to be used" option and click OK. This way, you will be prompted for a profile when starting Outlook.
8. Restart Outlook and select the new profile.
If the problem does not exist in the new profile, you can refer to following Microsoft Knowledge Base article to move your data in the old profile to the new
profile.
Note: This article also applies to Outlook 2003.
287070.KB.EN-US OL2002: How to Back Up, Restore, or Move Outlook Data
<
http://support.microsoft.com/default.aspx?scid=KB;EN-US;287070>
Test if issue persists. If so, try next step.
Step 3: Run Outlook in Safe mode
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The Safe Mode will disable all add-ins, extensions, or a corrupted resource, file, registry, or templates. It helps us isolate many problems.
1. Close Outlook if it's running.
2. Click Start->Run, Type "Outlook /Safe" (Without quotation marks and there is a space between "Outlook" and "/Safe") and press Enter.
Regards,
Scott Atkins MCSE, MCSA
Partner Technical Lead - Outlook
Microsoft Technical Support
for Platforms and Business Applications
