Is there any basis in not deploying anti-spam (or deliverability) technologies like DKIM, SPF, and SenderID because it affects plausible deniability?
Some definitions to get everyone on the same page:
Plausible deniability: This is a legal term used to disown accountability for something (an email, knowledge of an event, etc).
DKIM: An email signing technology that binds the message to the senders domain, or in some deployments to a specific user or set of users.
SPF: A whitelist of IP addresses that specify what email relays are permitted to send email on behalf of the domain.
I'm trying to understand if these technologies used alone or together can be used to remove doubt that an authorized sender is knowledgeable of "something" and if that could be used against them in court.
Examples of this "something" would be
- Stock trades
- Insider information
- Mergers & Acquisitions
- Other data that is material in a court case