Elasticsearch options

Elasticsearch options control IMAP search operations when the  is set to. See also the ISC Options and Indexer Options.

See also:
 * hostlist Option
 * port Option
 * authusername Option
 * authpassword Option
 * sslusessl Option
 * storesource Option
 * numshards Option
 * numreplicas Option
 * prefix_search Option
 * suffix_search Option
 * substring_search Option
 * searchengine Store Option
 * ISC options
 * The Message Store