diff --git a/src/GitLabHealth-Model-Analysis/GitMetric4User.class.st b/src/GitLabHealth-Model-Analysis/GitMetric4User.class.st
index e9c56ea..f1c2d1f 100644
--- a/src/GitLabHealth-Model-Analysis/GitMetric4User.class.st
+++ b/src/GitLabHealth-Model-Analysis/GitMetric4User.class.st
@@ -9,6 +9,20 @@ Class {
 	#category : #'GitLabHealth-Model-Analysis'
 }
 
+{ #category : #'email' }
+GitMetric4User >> withUserEmailDomain: aEmailDomain [
+	emailDomain :=  aEmailDomain. 
+]
+
+{ #category : #'email' }
+GitMetric4User >> userEmail [
+	"overide this method to adapt on your situation"
+ 
+	^ ('' join: {
+			          user username.
+			          emailDomain }) asLowercase.
+]
+
 { #category : #'metrics - commits' }
 GitMetric4User >> averageTimeBetweenCommitSince: since until: until overA: aDateWeekMonthOrYear [
 
@@ -664,7 +678,9 @@ GitMetric4User >> initialize [
 	user := GLHUser new.
 	itsProjects := Dictionary new.
 	itsCommits := Dictionary new.
-	itsMergeRequests := Dictionary new
+	itsMergeRequests := Dictionary new.
+	
+	emailDomain := '@generic-domain.com'
 ]
 
 { #category : #accessing }
@@ -697,7 +713,7 @@ GitMetric4User >> loadItsMergeRequesWithJiraIssueSince: since until: until [
 		                    loadItsMergeRequestsSince: since
 		                    until: until.
 
-	email := ('' join:  {user username . '@berger-levrault.com'}) asLowercase .
+	email := self userEmail. 
 
 	jiraImporter importAllCurrentAndPastIssuesOf:
 		email.
diff --git a/src/GitLabHealth-Model-Analysis/GitMetricExporter.class.st b/src/GitLabHealth-Model-Analysis/GitMetricExporter.class.st
index af3f68a..a7fc98d 100644
--- a/src/GitLabHealth-Model-Analysis/GitMetricExporter.class.st
+++ b/src/GitLabHealth-Model-Analysis/GitMetricExporter.class.st
@@ -17,6 +17,8 @@ Class {
 	#category : #'GitLabHealth-Model-Analysis'
 }
 
+
+
 { #category : #'as yet unclassified' }
 GitMetricExporter class >> demoPeriod [
 
@@ -26,6 +28,13 @@ GitMetricExporter class >> demoPeriod [
 		  addAPeriodFrom: '01 march 2024' to: '31 may 2024'
 ]
 
+{ #category : #setup }
+GitMetricExporter >> withEmailDomain: anEmailDomain [
+
+	"define the email domain of your Git user. Usefull to link them between service (i.e. Jira)"
+	emailDomain := anEmailDomain
+]
+
 { #category : #adding }
 GitMetricExporter >> addAPeriodFrom: since to: until [
 
@@ -470,7 +479,7 @@ GitMetricExporter >> onlyImportProjectsOfGroup: groupId [
 	projectCache := group toScope: GLHProject
 ]
 
-{ #category : #adding }
+{ #category : #setup }
 GitMetricExporter >> setupAnalysisForUsersWithNames: userNames [
 	"import all the project since a certain time"
 
@@ -487,6 +496,8 @@ GitMetricExporter >> setupAnalysisForUsersWithNames: userNames [
 			 metrics := GitMetric4User new.
 			 metrics
 				 glhImporter: glhImporter;
+				 jiraImporter: jiraImporter;
+				 withUserEmailDomain: emailDomain;
 				 user: user.
 
 			 i := 0.
diff --git a/src/GitLabHealth-Model-Importer/GLHModelImporter.class.st b/src/GitLabHealth-Model-Importer/GLHModelImporter.class.st
index 69008a4..108b819 100644
--- a/src/GitLabHealth-Model-Importer/GLHModelImporter.class.st
+++ b/src/GitLabHealth-Model-Importer/GLHModelImporter.class.st
@@ -1155,7 +1155,8 @@ GLHModelImporter >> userCatalogue [
 { #category : #accessing }
 GLHModelImporter >> userCatalogue: aGLHUserCatalogue [
 
-	userCatalogue := aGLHUserCatalogue
+	userCatalogue := aGLHUserCatalogue.
+	aGLHUserCatalogue anImporter: self. 
 ]
 
 { #category : #accessing }