Post Offices in Dedham, Massachusetts, United States SearchSearch SearchSearch View: Grid 1View: Grid 2View: Grid 3View: Grid 4View: Grid 5View: List Dedham Post Office No Reviews Favorite Fax: (781) 251-0285Phone: (781) 326-3462Retail Hours East Dedham Post Office No Reviews Favorite Fax: (781) 251-0285Phone: (781) 326-4910Retail Hours