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Signed and Encrypted E-Mail |
  
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Signed and Encrypted E-Mail |
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The E-Mail Security optional feature allows e-mail to be signed and/or encrypted. In conjunction with special records in your domain's DNS records, it can also provide DKIM verification.
Signed E-Mail
Signed e-mail normally uses the sender's private key to sign the message, and the recipient then uses the sender's public key to verify the source of the message. This requires a configuration command:
$email_security * SMIMEsign
and then a typical FS file would contain:
$fax_user "@FFUSER\EMAIL.USR
$email_options smimesign
$email_sign_keyfile "@FFBASE\steve.pfx;xyzzy" ; private key
$email_esender steve@copia.com
$email_from steve@copia.com
$email_address changeme@changeme.com
$email_subject "Test of signed mail"
$email_attach "`PR_FAXPATH" "application/pdf; name=""`PR_FAXPDF"""
Encrypted E-Mail
Encrypted e-mail normally uses the recipient's public key to encrypt the message, and recipients then use their own private key to decrypt the message. This requires a configuration command:
$email_security * SMIMEencrypt
and then a typical FS file would contain:
$fax_user "@FFUSER\EMAIL.USR
$email_options smimeencrypt
$email_encrypt_keyfile "@FFBASE\changeme.cer"
$email_esender steve@copia.com
$email_from steve@copia.com
$email_address changeme@changeme.com
$email_subject "Test of encrypted mail"
$email_attach "`PR_FAXPATH" "application/pdf; name=""`PR_FAXPDF"""
DKIM E-Mail
This operation is similar to signed e-mail, but uses a special DNS record to verify the sending domain against the supplied key. This requires you or your ISP to add records to the domain DNS. For more information on this, see http://antispam.yahoo.com/domainkeys. You can add multiple DNS records and use DK_SELECTOR to select which one to use for a specific transmission. You require a configuration command:
$email_security * DKIM
and then a typical FS file would contain:
$fax_user "@FFUSER\EMAIL.USR
$email_options DKIM
$email_dkim_keyfile "@FFBASE\TestRSAKey.pem"
$var_def DK_SELECTOR abcdef
$email_esender steve@copia.com
$email_from steve@copia.com
$email_address changeme@changeme.com
$email_subject "Test of DomainKeys/DKIM mail"
$email_attach "brochure.pdf" "application/pdf"
You can create any combinations of the above three security methods by using separate $email_..._keyfile commands. In this case the $email_security configuration command would need to show multiple keywords.
See Sending Signed and Encrypted E-Mail for more information.
Topic url: http://www.copia.com/support/refmanual/index.html?signed_and_encrypted_e_mail2.htm