Mississippi Code
Chapter 23 - Revised Uniform Fiduciary Access to Digital Assets Act
§ 91-23-17. Disclosure of content of electronic communications of principal

To the extent a power of attorney expressly grants an agent authority over the content of electronic communications sent or received by the principal and unless directed otherwise by the principal or the court, a custodian shall disclose to the agent the content if the agent gives the custodian:
A written request for disclosure in physical or electronic form;
An original or copy of the power of attorney expressly granting the agent authority over the content of electronic communications of the principal;
A certification by the agent, under penalty of perjury, that the power of attorney is in effect; and
If requested by the custodian:
A number, username, address or other unique subscriber or account identifier assigned by the custodian to identify the principal's account; or
Evidence linking the account to the principal.

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