

Click OK to save your changes and exit Outlook Preferences.īy default, your email messages will be digitally signed.IU does not currently use the Certificate authentication option if this is option is available, do not select it.If you are using the classic Outlook interface, AES 256 is the best encryption algorithm. It is not necessary to check Encrypt outgoing messages each email message can be optionally encrypted when you compose it.In the "Encryption" section, select your certificate from the drop-down menu.Include my certificates in signed messages.Send digitally signed messages as clear text.For the best usability, enable the following options:.This section is not available in the new Outlook interface. For "Signing algorithm", the default value of SHA-256 is appropriate for most situations.


If you have the public certificate for the recipient(s) to whom the message is addressed, you will be able to encrypt the email message. Because digital signatures are sent as attachments, which some mailing lists do not accept, you may not want to digitally sign messages sent to mailing lists.
