Unfortuniatly, Yahoo's offering with Secure delivery would not increase encrypted email traffic at all even if all Yahoo users ALWAYS sent their email using the new service. I think that most people would define email traffic as the communication from one SMTP server to the other. With this system there is NO encrypted SMTP traffic. If you use the service you will notice that SMTP is only used to send a notification (containing an unsecure link) to the recipient of a secure email. The recipient has to click on the link to discern the contents of the secure email. Thus, the ONLY encryption that the user will ever be able to discern is ssl.
Notice also that copies of SENT messages are stored in the clear in your out box. This service does little to secure content.
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Unfortuniatly, Yahoo's offering with Secure delivery would not increase encrypted email traffic at all even if all Yahoo users ALWAYS sent their email using the new service. I think that most people would define email traffic as the communication from one SMTP server to the other. With this system there is NO encrypted SMTP traffic. If you use the service you will notice that SMTP is only used to send a notification (containing an unsecure link) to the recipient of a secure email. The recipient has to click on the link to discern the contents of the secure email. Thus, the ONLY encryption that the user will ever be able to discern is ssl.
Notice also that copies of SENT messages are stored in the clear in your out box. This service does little to secure content.