diff --git a/.env.example b/.env.example
index b8e1c1f..4c29ad7 100644
--- a/.env.example
+++ b/.env.example
@@ -5,3 +5,4 @@ APP_LISTEN_PORT=3000
 APP_BEHIND_PROXY=false
 DATABASE_DSN="host=localhost user=camarades password=camarades dbname=camarades port=5432 sslmode=disable TimeZone=Europe/Zurich"
 SESSIONS_LOCATION=./sessions.db
+AUTHELIA_USERS_LOCATION=./users.yml
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
index b6c620e..971cd36 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,3 +6,4 @@ static/assets
 pop-camarades
 *.db
 __debug_bin*
+users.yml
\ No newline at end of file
diff --git a/controllers/contacts.go b/controllers/contacts.go
index 40fbfad..d85afc6 100644
--- a/controllers/contacts.go
+++ b/controllers/contacts.go
@@ -495,6 +495,18 @@ func ContactAdd(c *fiber.Ctx) error {
 		person.PostalCode = data.PostalCode
 		person.City = data.City
 
+		if len(data.Email) > 0 {
+			var personEmail []models.Person
+			result := db.Find(&personEmail, "LOWER(email) = LOWER(?)", data.Email)
+			if result.Error != nil {
+				return result.Error
+			}
+
+			if result.RowsAffected > 0 {
+				errors = append(errors, "L'adresse email est déjà utilisée par un membre ou un sympathisant")
+			}
+		}
+
 		sectionID, err := strconv.ParseUint(data.Section, 10, 0)
 		if err == nil {
 			for _, section := range sections {
@@ -744,6 +756,18 @@ func ContactEdit(c *fiber.Ctx) error {
 		person.PostalCode = data.PostalCode
 		person.City = data.City
 
+		if len(data.Email) > 0 {
+			var personEmail []models.Person
+			result := db.Find(&personEmail, "LOWER(email) = LOWER(?)", data.Email)
+			if result.Error != nil {
+				return result.Error
+			}
+
+			if result.RowsAffected > 0 {
+				errors = append(errors, "L'adresse email est déjà utilisée par un membre ou un sympathisant")
+			}
+		}
+
 		sectionID, err := strconv.ParseUint(data.Section, 10, 0)
 		if err == nil {
 			for _, section := range sections {
diff --git a/controllers/members.go b/controllers/members.go
index e1c0405..8e0f0c1 100644
--- a/controllers/members.go
+++ b/controllers/members.go
@@ -18,7 +18,7 @@ import (
 type PersonValidation struct {
 	LastName   string `validate:"max=100"`
 	FirstName  string `validate:"required,min=1,max=100"`
-	Email      string `validate:"max=100"`
+	Email      string `validate:"max=100,email"`
 	Phone      string `validate:"max=100"`
 	Mobile     string `validate:"max=100"`
 	Address1   string `validate:"max=100"`
@@ -498,6 +498,18 @@ func MemberAdd(c *fiber.Ctx) error {
 			}
 		}
 
+		if len(data.Email) > 0 {
+			var personEmail []models.Person
+			result := db.Find(&personEmail, "LOWER(email) = LOWER(?)", data.Email)
+			if result.Error != nil {
+				return result.Error
+			}
+
+			if result.RowsAffected > 0 {
+				errors = append(errors, "L'adresse email est déjà utilisée par un membre ou un sympathisant")
+			}
+		}
+
 		person.IsContact = false
 		person.IsMember = true
 		person.LastName = data.LastName
@@ -747,6 +759,18 @@ func MemberEdit(c *fiber.Ctx) error {
 			}
 		}
 
+		if len(data.Email) > 0 {
+			var personEmail []models.Person
+			result := db.Find(&personEmail, "LOWER(email) = LOWER(?)", data.Email)
+			if result.Error != nil {
+				return result.Error
+			}
+
+			if result.RowsAffected > 0 {
+				errors = append(errors, "L'adresse email est déjà utilisée par un membre ou un sympathisant")
+			}
+		}
+
 		person.IsContact = false
 		person.IsMember = true
 		person.LastName = data.LastName
diff --git a/helpers/authelia/users.go b/helpers/authelia/users.go
new file mode 100644
index 0000000..62bbf24
--- /dev/null
+++ b/helpers/authelia/users.go
@@ -0,0 +1 @@
+package authelia
diff --git a/helpers/config.go b/helpers/config.go
index e87443d..e6c0791 100644
--- a/helpers/config.go
+++ b/helpers/config.go
@@ -20,6 +20,9 @@ type Config struct {
 	Sessions struct {
 		Location string `env:"SESSIONS_LOCATION"`
 	}
+	Authelia struct {
+		UsersLocation string `env:"AUTHELIA_USERS_LOCATION"`
+	}
 }
 
 var configParsed bool
diff --git a/helpers/database.go b/helpers/database.go
index 00ed2f8..73aacdf 100644
--- a/helpers/database.go
+++ b/helpers/database.go
@@ -52,6 +52,7 @@ func GetDatabase() (*gorm.DB, error) {
 		&models.Role{},
 		&models.UserRole{},
 		&models.Person{},
+		&models.PersonAccount{},
 		&models.List{},
 		&models.ListItem{},
 		&models.Field{},
diff --git a/models/people.go b/models/people.go
index 8cab6a0..6086734 100644
--- a/models/people.go
+++ b/models/people.go
@@ -1,6 +1,11 @@
 package models
 
-import "gorm.io/gorm"
+import (
+	"time"
+
+	"github.com/google/uuid"
+	"gorm.io/gorm"
+)
 
 type Person struct {
 	gorm.Model
@@ -8,7 +13,7 @@ type Person struct {
 	IsContact  bool
 	FirstName  string
 	LastName   string
-	Email      string
+	Email      string `gorm:"unique"`
 	Phone      string
 	Mobile     string
 	Address1   string
@@ -18,3 +23,21 @@ type Person struct {
 	SectionID  uint
 	Section    Section
 }
+
+type PersonAccount struct {
+	gorm.Model
+	PersonID        uint
+	Person          Person
+	UUID            uuid.UUID `gorm:"unique"`
+	Enabled         bool
+	Email           string `gorm:"unique"`
+	GivenName       string
+	FamilyName      string
+	DisplayName     string
+	Groups          string
+	InitialPassword string
+	InvitationSent  time.Time
+	AccountReady    bool
+	AccountCreated  bool
+	UpdateNeeded    bool
+}
diff --git a/models/users.go b/models/users.go
index 367c020..8eb330d 100644
--- a/models/users.go
+++ b/models/users.go
@@ -10,7 +10,7 @@ import (
 type User struct {
 	gorm.Model
 	Name        string
-	Email       string
+	Email       string `gorm:"unique"`
 	Password    string
 	TotpSecret  sql.NullString
 	IsAdmin     bool