The Des Moines School District is appealing a recent ruling to the Iowa Supreme Court.
Last month a Polk County judge denied a request by the district to dismiss a lawsuit filed by former superintendent Nancy Sebring.
The lawsuit claims the district should not have released sexually explicit e-mails Sebring sent with her school e-mail account. She is suing the district, its spokesperson, the former school board president and a school attorney.
She claims the district deliberately released her e-mails, which were sent from her school account, to the media.
The e-mails led Sebring to resign in 2012.
The district argues that a ruling for Sebring in the case could seriously damage the release of open records in Iowa, leading some entities to hold back information for fear of litigation.
The case is scheduled to go on trial later this year.