Okla. Stat. tit. 58, § 58-3112: Disclosure of electronic communications content to

trustee that is not an original user.

Unless otherwise ordered by the court, directed by the user, or

provided in a trust, a custodian shall disclose to a trustee that is

not an original user of an account the content of an electronic

communication sent or received by an original or successor user and

carried, maintained, processed, received, or stored by the custodian

in the account of the trust if the trustee gives the custodian:

1. A written request for disclosure in physical or electronic

form;

2. A certified copy of the trust instrument that includes

consent to disclosure of the content of electronic communications to

the trustee;

3. A certification by the trustee, under penalty of perjury,

that the trust exists and the trustee is a currently acting trustee

of the trust; and

4. If requested by the custodian:

a. a number, username, address, or other unique

subscriber or account identifier assigned by the

custodian to identify the trust's account, or

b. evidence linking the account to the trust.