Unless the court, on motion or of its own initiative orders otherwise, a copy of every pleading and motion, and every brief submitted to the trial court, except trial briefs, shall be served personally or by mail on or before the day of the filing thereof upon each attorney or firm of attorneys appearing of record for each adverse party. Handing a copy to an attorney or leaving it at the attorney’s office with the clerk or other person in charge thereof shall be considered as personal service.

It shall be the duty of attorneys when entering their appearance in a cause or when filing pleadings or papers therein, to have noted on the Chronological Case Summary or on said pleadings or papers so filed, their mailing address, and service by mail at such address shall be deemed sufficient.