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Check this article out. &nbsp;this solved another post with the same problem: <br />
<br />
<a href="http://support.microsoft.com/kb/831601" rel="ugc nofollow">http://support.microsoft.com/kb/831601</a><br />
<br />
Regards,<br />
<br />
Rob
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Check this article out.  this solved another post with the same problem:

http://support.microsoft.com/kb/831601 [http://support.microsoft.com/kb/831601]

Regards,

Rob

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That is for Exchange 2000 server. &nbsp;I'm on Exchange 2003, outlook 2003
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That is for Exchange 2000 server.  I'm on Exchange 2003, outlook 2003

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Sorry, sometimes the answers still apply to newer versions. &nbsp;I see no other articles or posts with an answer on my searches.
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Sorry, sometimes the answers still apply to newer versions.  I see no other articles or posts with an answer on my searches.

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Closed, 500 points refunded.<br />
Vee_Mod<br />
Community Support Moderator
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Closed, 500 points refunded.
Vee_Mod
Community Support Moderator

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<div class="content wysiwyg-content">
Exchange 2003, Outlook 2003<br />
User tries to open an email that is digitally signed and gets this error.<br />
&quot;Can't open this item. &nbsp;Your digital ID name can not be found by the underlying security system.&quot;<br />
I found another post that suggested unchecking an item under the security tab of outlook but that didn't do it.<br />

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Exchange 2003, Outlook 2003
User tries to open an email that is digitally signed and gets this error.
"Can't open this item.  Your digital ID name can not be found by the underlying security system."
I found another post that suggested unchecking an item under the security tab of outlook but that didn't do it.


Error when trying to open a digitally signed email

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

Microsoft Outlook is a personal information manager from Microsoft, available as a part of the Microsoft Office suite. Although often used mainly as an email application, it also includes a calendar, task manager, contact manager, note-taker, journal, and web browser.

Outlook

An email client, email reader or more formally mail user agent (MUA) is a computer program in the category of groupware environments used to access and manage a user's email. A web application that provides message management, composition, and reception functions may internally act as an email client; as a whole, it is commonly referred to as webmail. Likewise, email client may be referred to a piece of computer hardware or software whose primary or most visible role is to work as an email client. Email clients can also have other systems, like calendars, notes and contact managers.