diff --git a/go.mod b/go.mod
index 4c0331f1e..d95f9d9ac 100644
--- a/go.mod
+++ b/go.mod
@@ -44,7 +44,7 @@ require (
 	github.com/stretchr/testify v1.8.2
 	github.com/trustelem/zxcvbn v1.0.1
 	github.com/valyala/fasthttp v1.45.0
-	github.com/wneessen/go-mail v0.3.8
+	github.com/wneessen/go-mail v0.3.9
 	golang.org/x/net v0.8.0
 	golang.org/x/sync v0.1.0
 	golang.org/x/term v0.6.0
diff --git a/go.sum b/go.sum
index 0ce4b1cc4..d32234490 100644
--- a/go.sum
+++ b/go.sum
@@ -509,6 +509,8 @@ github.com/valyala/fasthttp v1.45.0 h1:zPkkzpIn8tdHZUrVa6PzYd0i5verqiPSkgTd3bSUc
 github.com/valyala/fasthttp v1.45.0/go.mod h1:k2zXd82h/7UZc3VOdJ2WaUqt1uZ/XpXAfE9i+HBC3lA=
 github.com/wneessen/go-mail v0.3.8 h1:ja5D/o/RVwrtRIYFlrO7GmtcjDNeMakGQuwQRZYv0JM=
 github.com/wneessen/go-mail v0.3.8/go.mod h1:m25lkU2GYQnlVr6tdwK533/UXxo57V0kLOjaFYmub0E=
+github.com/wneessen/go-mail v0.3.9 h1:Q4DbCk3htT5DtDWKeMgNXCiHc4bBY/vv/XQPT6XDXzc=
+github.com/wneessen/go-mail v0.3.9/go.mod h1:zxOlafWCP/r6FEhAaRgH4IC1vg2YXxO0Nar9u0IScZ8=
 github.com/x448/float16 v0.8.4 h1:qLwI1I70+NjRFUR3zs1JPUCgaCXSh3SW62uAKT1mSBM=
 github.com/x448/float16 v0.8.4/go.mod h1:14CWIYCyZA/cWjXOioeEpHeN/83MdbZDRQHoFcYsOfg=
 github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2/go.mod h1:UETIi67q53MR2AWcXfiuqkDkRtnGDLqkBTpCHuJHxtU=
diff --git a/internal/notification/smtp_auth.go b/internal/notification/smtp_auth.go
index f8ea04e52..5901f9209 100644
--- a/internal/notification/smtp_auth.go
+++ b/internal/notification/smtp_auth.go
@@ -2,11 +2,10 @@ package notification
 
 import (
 	"fmt"
-	"net/smtp"
 	"strings"
 
 	"github.com/wneessen/go-mail"
-	"github.com/wneessen/go-mail/auth"
+	"github.com/wneessen/go-mail/smtp"
 
 	"github.com/authelia/authelia/v4/internal/configuration/schema"
 	"github.com/authelia/authelia/v4/internal/utils"
@@ -46,7 +45,7 @@ func (a *OpportunisticSMTPAuth) Start(server *smtp.ServerInfo) (proto string, to
 			case mail.SMTPAuthPlain:
 				a.sa = smtp.PlainAuth("", a.username, a.password, a.host)
 			case mail.SMTPAuthLogin:
-				a.sa = auth.LoginAuth(a.username, a.password, a.host)
+				a.sa = smtp.LoginAuth(a.username, a.password, a.host)
 			case mail.SMTPAuthCramMD5:
 				a.sa = smtp.CRAMMD5Auth(a.username, a.password)
 			}
@@ -61,7 +60,7 @@ func (a *OpportunisticSMTPAuth) Start(server *smtp.ServerInfo) (proto string, to
 			case mail.SMTPAuthPlain:
 				a.sa = smtp.PlainAuth("", a.username, a.password, a.host)
 			case mail.SMTPAuthLogin:
-				a.sa = auth.LoginAuth(a.username, a.password, a.host)
+				a.sa = smtp.LoginAuth(a.username, a.password, a.host)
 			case mail.SMTPAuthCramMD5:
 				a.sa = smtp.CRAMMD5Auth(a.username, a.password)
 			}