When setting up name format options for organizations, users can choose for the salutation to be either the organization name, the contact name, or a generic custom name (by selecting "Other name"). When the option is selected to use the organization contact name as the salutation, users have the option to choose what to do if there is no contact. Here, users can choose to use the organization name, or another name (again, select "Other name"). However, when selecting and specifying another name to use when there are no contacts to mail to, the "Other name" is not exported and the field is blank when exporting the salutation from a marketing effort.
Download and install the latest patch, which contains all fixes from previous patches. If you are running an older version, download and install the latest version and then the patch.