Could not parse email unexpected field field – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-7.15

Briefly, this error occurs when Elasticsearch tries to parse an email field but encounters an unexpected field. This could be due to incorrect field mapping or a malformed email. To resolve this, you can check the mapping of your index to ensure the email field is correctly defined. Also, validate the email data being indexed to ensure it’s in the correct format. If the error persists, consider reindexing your data with the correct mapping and data format.

This guide will help you check for common problems that cause the log ” could not parse email. unexpected field [{}.{}] field ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.

Log Context

Log “could not parse email. unexpected field [{}.{}] field” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 } else if (Email.Field.BODY_TEXT.match(currentFieldName; parser.getDeprecationHandler())) {
 } else if (Email.Field.BODY_HTML.match(currentFieldName; parser.getDeprecationHandler())) {
 } else {
 throw new ElasticsearchParseException("could not parse email. unexpected field [{}.{}] field"; bodyField;
 } else {


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