Can I send messages using digital certificates with ProductiveMail?
No, because the footer (image and text) that ProductiveMail needs to add to the outgoing message invalidates the certificate. Digital Certificates are designed to guarantee that an email hasn’t been modified in any way after it has been sent. Thus, as a certificate is added when the message leaves your mail client but before being processed by ProductiveMail, any changes made to it after this point will invalidate the certificate. Then, if you need to send a particular email message using a digital certificate you’ll have to disable ProductiveMail before sending that message.
