use git to retrieve committer email

			mail to: 'cti_support@etsi.org',

				subject: "Failed Pipeline: ${currentBuild.fullDisplayName}",

				body: "Something is wrong with ${env.BUILD_URL}"

			mail to: "${env.gitlabUserEmail}",

			RECIPIENT = """${sh(

                returnStdout: true,

                script: "git log --format='%ae' HEAD^!"

            )}"""

			mail to: "${RECIPIENT}",

				subject: "[3GPP Forge] Validaiton failed: ${currentBuild.fullDisplayName}",

				body: "Some validation errors were found in your contribution to 3GPP Forge. Review at ${env.BUILD_URL}"

		}