I get an Active X error when I send or receive messages with signatures.

Editing Outlook signatures in using the Microsoft Work editor (the default editor) can result in unintended insertions of Smart-Tags, which cause Active X errors in many situations.

The email2 Toolbar and the email2 Web Client Interface are not causing these errors – such errors also occur when the email2 Toolbar is not installed.
If you suspect your signature has Smart-Tags that are causing problems for you or your recipients, you can check easily by opening an afflicted email message and right clicking anywhere in the body of it. Select “View Source” from the menu that appears.

This will open a text editor full of HTML code. You don’t need to worry about most of this, but near the end, look for a block of text that looks like this:

<o:SmartTagType 
namespaceuri="urn:schemas-microsoft-com:office:smarttags" 
name="place"></o:SmartTagType><o:SmartTagType 
namespaceuri="urn:schemas-microsoft-com:office:smarttags" 
name="PostalCode"></o:SmartTagType><o:SmartTagType 
namespaceuri="urn:schemas-microsoft-com:office:smarttags" 
name="State"></o:SmartTagType><o:SmartTagType 
namespaceuri="urn:schemas-microsoft-com:office:smarttags" 
name="City"></o:SmartTagType><o:SmartTagType 
namespaceuri="urn:schemas-microsoft-com:office:smarttags" 
name="Street"></o:SmartTagType><o:SmartTagType 
namespaceuri="urn:schemas-microsoft-com:office:smarttags" 
name="address"></o:SmartTagType>
<OBJECT id=ieooui classid=clsid:38481807-CA0E-42D2-BF39-B33AF135CC4D></OBJECT>
<STYLE>st1\:* {
	BEHAVIOR: url(#ieooui)
}
</STYLE>

If you have determined that you have undesired Smart-Tags in your email signature, follow these steps to manually remove them.

If you are using Outlook 2003 on Windows XP under the default installation path, press Start, Run and enter the following path into the dialog box:

C:\Documents and Settings\%username%\Application Data\Microsoft\Signatures

You should have a window open with all of your signatures present. There are three versions of each signature that you have: HTML, Rich Text, Text.

Before you continue, you might want to make a backup of the HTML signature that you are about to edit.

Now, right click on the HTML file for the signature you want to edit. Select Open With... > Notepad.

Remove the text above (the text containing <o:SmartTagType>, etc.).

Save the changes and close the file.

Now when you send a message using this signature, you should not experience any Active X error messages.