ReverseMapMemberListNone.cs

static void Main(string[] args)
{
  var config = new MapperConfiguration(cfg =>
  {
    cfg.CreateMap<ClassFrom, ClassTo>(MemberList.None).ReverseMap();
  });
  config.AssertConfigurationIsValid();
  config.FindTypeMapFor(typeof(ClassTo), typeof(ClassFrom)).ConfiguredMemberList.Dump();
  var mapper = config.CreateMapper();
  var fromList = new List<ClassFrom>
	{
		new ClassFrom { UnmappedSource = 1, Foo = "foo1", Bar = "Bar1" },
		new ClassFrom { UnmappedSource = 2, Foo = "foo2", Bar = "Bar2" }
	};
  try{
	var destination = mapper.Map<List<ClassTo>>(fromList).Dump();
	mapper.Map<List<ClassFrom>>(destination).Dump();
  }catch(Exception ex){
  	ex.ToString().Dump();
  }
}

class ClassFrom
{
    public int UnmappedSource { get; set; }
    public string Foo { get; set; }
    public string Bar { get; set; }
}

class ClassTo
{
	public int UnmappedDestination { get; set; }
    public string Foo { get; set; }
    public string Bar { get; set; }
}