Microsoft Office Tutorials and References
In Depth Information
2.
Click the arrow in the Options section of the Message ribbon to display the Message
Options dialog box.
3.
Click the Security Settings button to open the Security Properties dialog box (shown
earlier in Figure 20.6).
4.
Select the Add Digital Signature to the Message option.
5.
Click OK, then click Close, to return to the message.
To add a digital signature to all outgoing messages:
1.
Select Trust Center from the Tools menu.
2.
Click E-mail Security.
3.
In the Encrypted E-mail section, select the Add Digital Signature to Outgoing Messages
option.
4.
Click OK.
HTML Message Dangers
Because HTML messages can contain script and ActiveX controls, they are a potential source of
virus attacks. To guard against any HTML viruses that make it past your anti-virus software, you
can tell Outlook to display HTML messages as plain text. Because scripts and ActiveX controls are
not activated until the HTML is displayed, this prevents them from doing harm.
To guard against malicious HTML messages:
1.
Select Trust Center from the Tools menu.
2.
Click E-mail Security.
3.
Under Read as Plain Text, select the Read All Standard Mail in Plain Text (this means
unsigned messages).
4.
If you want to include digitally signed messages, select the Read All Digitally Signed Mail
in Plain Text option.
5.
Click OK.
Switching from Plain Text to HTML Display
If you have set your options to read HTML messages as plain text, you can switch an individual
open message to HTML display by clicking the Info bar and selecting Display as HTML.
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