diff --git a/services/mailu/helmrelease.yaml b/services/mailu/helmrelease.yaml
index 7342141..9779aed 100644
--- a/services/mailu/helmrelease.yaml
+++ b/services/mailu/helmrelease.yaml
@@ -335,8 +335,14 @@ spec:
                         export INITIAL_ADMIN_PW="{{ .Data.data.password }}"
                         {{ end }}
                         {{ with secret "kv/data/atlas/shared/postmark-relay" }}
-                        export RELAYUSER="{{ index .Data.data "apikey" }}"
-                        export RELAYPASSWORD="{{ index .Data.data "apikey" }}"
+                        {{- $apikey := index .Data.data "apikey" -}}
+                        {{- if $apikey }}
+                        export RELAYUSER="{{ $apikey }}"
+                        export RELAYPASSWORD="{{ $apikey }}"
+                        {{- else }}
+                        export RELAYUSER="{{ index .Data.data "accesskey" }}"
+                        export RELAYPASSWORD="{{ index .Data.data "secretkey" }}"
+                        {{- end }}
                         {{ end }}
                   spec:
                     serviceAccountName: mailu-vault-sync
@@ -397,8 +403,14 @@ spec:
                         export INITIAL_ADMIN_PW="{{ .Data.data.password }}"
                         {{ end }}
                         {{ with secret "kv/data/atlas/shared/postmark-relay" }}
-                        export RELAYUSER="{{ index .Data.data "apikey" }}"
-                        export RELAYPASSWORD="{{ index .Data.data "apikey" }}"
+                        {{- $apikey := index .Data.data "apikey" -}}
+                        {{- if $apikey }}
+                        export RELAYUSER="{{ $apikey }}"
+                        export RELAYPASSWORD="{{ $apikey }}"
+                        {{- else }}
+                        export RELAYUSER="{{ index .Data.data "accesskey" }}"
+                        export RELAYPASSWORD="{{ index .Data.data "secretkey" }}"
+                        {{- end }}
                         {{ end }}
                   spec:
                     serviceAccountName: mailu-vault-sync
@@ -459,8 +471,14 @@ spec:
                         export INITIAL_ADMIN_PW="{{ .Data.data.password }}"
                         {{ end }}
                         {{ with secret "kv/data/atlas/shared/postmark-relay" }}
-                        export RELAYUSER="{{ index .Data.data "apikey" }}"
-                        export RELAYPASSWORD="{{ index .Data.data "apikey" }}"
+                        {{- $apikey := index .Data.data "apikey" -}}
+                        {{- if $apikey }}
+                        export RELAYUSER="{{ $apikey }}"
+                        export RELAYPASSWORD="{{ $apikey }}"
+                        {{- else }}
+                        export RELAYUSER="{{ index .Data.data "accesskey" }}"
+                        export RELAYPASSWORD="{{ index .Data.data "secretkey" }}"
+                        {{- end }}
                         {{ end }}
                   spec:
                     serviceAccountName: mailu-vault-sync
@@ -521,8 +539,14 @@ spec:
                         export INITIAL_ADMIN_PW="{{ .Data.data.password }}"
                         {{ end }}
                         {{ with secret "kv/data/atlas/shared/postmark-relay" }}
-                        export RELAYUSER="{{ index .Data.data "apikey" }}"
-                        export RELAYPASSWORD="{{ index .Data.data "apikey" }}"
+                        {{- $apikey := index .Data.data "apikey" -}}
+                        {{- if $apikey }}
+                        export RELAYUSER="{{ $apikey }}"
+                        export RELAYPASSWORD="{{ $apikey }}"
+                        {{- else }}
+                        export RELAYUSER="{{ index .Data.data "accesskey" }}"
+                        export RELAYPASSWORD="{{ index .Data.data "secretkey" }}"
+                        {{- end }}
                         {{ end }}
                   spec:
                     serviceAccountName: mailu-vault-sync
@@ -583,8 +607,14 @@ spec:
                         export INITIAL_ADMIN_PW="{{ .Data.data.password }}"
                         {{ end }}
                         {{ with secret "kv/data/atlas/shared/postmark-relay" }}
-                        export RELAYUSER="{{ index .Data.data "apikey" }}"
-                        export RELAYPASSWORD="{{ index .Data.data "apikey" }}"
+                        {{- $apikey := index .Data.data "apikey" -}}
+                        {{- if $apikey }}
+                        export RELAYUSER="{{ $apikey }}"
+                        export RELAYPASSWORD="{{ $apikey }}"
+                        {{- else }}
+                        export RELAYUSER="{{ index .Data.data "accesskey" }}"
+                        export RELAYPASSWORD="{{ index .Data.data "secretkey" }}"
+                        {{- end }}
                         {{ end }}
                   spec:
                     serviceAccountName: mailu-vault-sync
@@ -645,8 +675,14 @@ spec:
                         export INITIAL_ADMIN_PW="{{ .Data.data.password }}"
                         {{ end }}
                         {{ with secret "kv/data/atlas/shared/postmark-relay" }}
-                        export RELAYUSER="{{ index .Data.data "apikey" }}"
-                        export RELAYPASSWORD="{{ index .Data.data "apikey" }}"
+                        {{- $apikey := index .Data.data "apikey" -}}
+                        {{- if $apikey }}
+                        export RELAYUSER="{{ $apikey }}"
+                        export RELAYPASSWORD="{{ $apikey }}"
+                        {{- else }}
+                        export RELAYUSER="{{ index .Data.data "accesskey" }}"
+                        export RELAYPASSWORD="{{ index .Data.data "secretkey" }}"
+                        {{- end }}
                         {{ end }}
                   spec:
                     serviceAccountName: mailu-vault-sync