Rich Jones

It would be interesting to know if the requests, as well as the automated robo-pokes, are even being opened.

Michael Morisy

We should be adding open info in the near future, but given accuracy issues with common methods we might not surface it directly for a while.

We started tracking whether it was sent/received via email/mail/fax a few months ago, which you can check via the API and which we hope to surface directly on the site soon as well as start doing some analysis on.