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Forums > Windows Server System > Exchange and Outlook

Unable to open digitally signed messages in Outlook 2007

Last Post 26 May 2011 12:10 PM by ZacWiggy. 6 Replies.

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FridayChild

Basic Member
Posts:213

02 Dec 2009 03:00 AM
Every now and then, I receive digitally signed e-mail messages which I cannot read in Outlook 2007. The same messages can be read without problems using Thunderbird. When I try to open those messages in Outlook, I get an error saying "an error occurred in the underlying security system - internal error". This behaviour can be reproduced on other Outlook 2007 installations. There must be something in the way the message is digitally signed that cannot be handled by Outlook, at least out-of-the-box. The fact that other e-mail clients can read the messages shows that it's a problem with Outlook and not with the messages themselves. Any advice is greatly appreciated.

BillHubbard
Forum Pro

Windows IT Pro - Forum Pro
Posts:5148
Avatar

04 Dec 2009 10:45 AM
In Outlook, did you opt to "Trust" the certificate authority that issued the digital signature. THIS ARTICLE will show you how to "trust" the issuing cert authority.

FridayChild

Basic Member
Posts:213

15 Dec 2009 12:44 AM
It's Outlook 2007 in my case, but I think the same principles apply. The problem is that I cannot do what the article says: "To view information about a certificate used to encrypt or digitally sign an e-mail message that was sent to you, open the message and click the cryptographic button on the far right in the header". Well the problem is that I cannot at all open the message in question. When I try to open it, I get the error stated above, so I cannot do anything that article suggests and I am left with no options, I have to read the message using another e-mail client. This is becoming urgent because an increasing number of colleagues seem to use whatever encryption method causes this, and I cannot read their mail.

FridayChild

Basic Member
Posts:213

11 Jan 2010 01:02 PM
bump surely someone else must have found this bug too?

sana
Posts:9

20 May 2011 11:52 PM
i am also facing the same problemved,,,please also share it with me if your problem is resol

Chickensaur

New Member
Posts:25

26 May 2011 11:46 AM
The person who is sending the emails...any idea how they are doing it? That would be one of the first things I am interested in based on what you are saying. Sometimes when a company signs or encrypts an email you need their public key either downloaded from the company providing the encryption or the company who is signing their documents.

Chickensaur

New Member
Posts:25

26 May 2011 11:46 AM
The person who is sending the emails...any idea how they are doing it? That would be one of the first things I am interested in based on what you are saying. Sometimes when a company signs or encrypts an email you need their public key either downloaded from the company providing the encryption or the company who is signing their documents.

ZacWiggy
Windows IT Pro Products Editor

Windows IT Pro - Editorial Staff
Posts:6

26 May 2011 12:10 PM
I get messages from a lot of different vendors, and sometimes Outlook just won't let me send certain messages. Every time I've had that happen, changing from HTML to text for the message has let me send. I haven't bothered to comb the messages to see what was stopping me, but I assume it was something in the quoted part of the message.

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