E-mail messages can be obtained under the open records law just as any other record would be. McCullough Plumbing, Inc. v. McFarland, 288 Wis. 2d 657 (2005). They are subject to the same exemptions and privileges, such as the attorney-client privilege.
E-mail messages are also subject to the state’s records retention policies, but a failure to comply with the policies cannot be “attacked” under the open records law. State ex rel. Gehl and DSG Evergreen F.L.P., v. Connors, et al., 306 Wis.2d 247 (Wis. 2007).