You can use, also called 'S/MIME Certs' or 'Personal Certificates', with most email clients to digitally sign and/or email messages. At Indiana University, S/MIME certificates are provided by the InCommon Certificate Service. For instructions on getting a certificate, see. When you receive your certificate from InCommon, it will be encrypted in the PKCS 12 format (.p12 or.pfx), using the strong passphrase ('PIN') you created for it at the time of request. You will need this passphrase to install the certificate. Also, for details about potential issues with various devices and applications when using digital signatures, be sure to refer to. Use your certificate with Apple Mail Use these instructions to enable Apple Mail to use client certificates to digitally sign and encrypt email. Enable digital signing and encryption • If you have just installed your certificate on your Mac, close Mail and then restart it. • Begin composing an email message. You should see the 'Signed' icon ( ) in the lower right of the message header (this indicates the message will be signed). If you don't see the 'Signed' icon, select Customize (in the lower left of the message header), and add the 'Lock' and 'Signed' icons. Sign email To send a signed message, verify that the 'Signed' icon has a checkmark ( ✔) in it. If the 'Signed' icon has an x instead, your message will not be signed. You may not want to sign messages to mailing lists, because S/MIME digital signatures are attachments, which some lists do not accept. Encrypt email If you have the public certificate for the user or users to whom the messages is addressed, you will be able to encrypt the email message: In the lower right of the message header, click the open lock icon to lock it; when the icon is locked, your email message will be encrypted. If you do not have certificates for everyone to whom the message is addressed, you will be prompted to send the message unencrypted. Use your certificate with Outlook for OS X Use these instructions to enable Outlook to use client certificates to digitally sign and encrypt email. Enable digital signing and encryption • If you have just installed your certificate on your Mac, close Outlook and then restart it. Word and excell for mac no longer up to date. ![]() Apple Mail lets you make your special mark on your email with an HTML email. If you want to create your own HTML signature for Apple's Mail app on OS X. We learnt a lot writing our installation guides for email signatures for different email programs. Here's our wrap up of what email programs we believe are the best for installing and sending HTML email signatures. Of course, our code works with a majority of them, but if you want to know which ones we think are the best, here they are. If email signatures are important to you and your. • From the Outlook menu, select Preferences > Accounts. Select your IU email account, click Advanced, and then select the Security tab. • In the 'Digital signing' section, select your certificate from the drop-down menu. • For 'Signing algorithm', the default value of SHA-256 is appropriate for most situations. • For the best usability, enable the following options: • Sign outgoing messages • Send digitally signed messages as clear text • Include my certificates in signed messages • In the 'Encryption' section, select your certificate from the drop-down menu. • For 'Encryption algorithm', ASE-256 is the best option. ![]() It is not necessary to check Encrypt outgoing messages; each email message can be optionally encrypted when you compose it. • IU does not currently use the 'Certificate authentication' options, so do not set this. • Click OK to save your changes and exit Outlook Preferences. Sign email By default, your email messages will be digitally signed. To indicate signing, a lock icon with the text 'This message will be digitally signed' will appear in the lower left of the message header when you compose an email message: If you do not want to sign a message, from the Options tab of the mail message, select Security and uncheck Digitally Sign Message. You may not want to sign messages to mailing lists, because S/MIME digital signatures are attachments, which some lists do not accept. Encrypt email Address and compose your email message. From the Options tab of the mail message, select Security and check Encrypt Message. If Outlook is unable to find certificates for everyone to whom the message is addressed, you will be prompted to search the IU Active Directory for user certificates. If Outlook is still unable to find certificates for all addressees, you will be prompted to send the message unencrypted.
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