When is data analyzed?

Does elasticsearch analyze field data if it is not indexed?

We are testing a template found on the web to process Exchange data from filebeat > logstash > elasticsearch.

The template mapped to the exchange indexes has the following in it:

},
"recipient_address": {
"type": "text",
"index": "false"
},
"related_recipient_address": {
"type": "text",
"index": "false"
},
"sender_address": {
"type": "text",
"index": "false"
},

If the index parameter is set to false in the template, does the data get processed by the default analyzer?

The data is not indexed, so it is not analyzed.