Object representation of a List-ID (RFC 2919) element.
Copyright 2012-2017 Horde LLC (http://www.horde.org/)
See the enclosed file LICENSE for license information (LGPL). If you did not receive this file, see http://www.horde.org/licenses/lgpl21.
| Horde_ListHeaders_Id | Object representation of a List-ID (RFC 2919) element. |