diff --git a/backend/src/emails/templates/transactionReceived/html.pug b/backend/src/emails/templates/transactionReceived/html.pug
index a9cf92ebe..9605dae5d 100644
--- a/backend/src/emails/templates/transactionReceived/html.pug
+++ b/backend/src/emails/templates/transactionReceived/html.pug
@@ -10,7 +10,7 @@ block content
     .child-left
       div(class="p_content")= memo
     .child-right
-      a.button-5(href= `mailto:${senderEmail}?subject=${encodeURIComponent(t('emails.transactionReceived.subject', { senderFirstName, senderLastName, transactionAmount }))}`)  
+      a.button-5(href= `mailto:${senderEmail}?subject=${encodeURIComponent(t('emails.transactionReceived.replySubject', { senderFirstName, senderLastName, transactionAmount }))}`)  
         include ../includes/chatbox-icon.pug 
         span #{t('emails.general.answerNow')}
     
diff --git a/backend/src/locales/de.json b/backend/src/locales/de.json
index 08b5a885a..bd161a521 100644
--- a/backend/src/locales/de.json
+++ b/backend/src/locales/de.json
@@ -90,6 +90,7 @@
     "transactionReceived": {
       "haveReceivedAmountGDDFrom": "du hast soeben {transactionAmount} GDD von {senderFirstName} {senderLastName} ({senderEmail}) erhalten.",
       "subject": "{senderFirstName} {senderLastName} hat dir {transactionAmount} Gradido gesendet",
+      "replySubject": "RE: {senderFirstName} {senderLastName} hat dir {transactionAmount} Gradido gesendet",
       "title": "{senderFirstName} {senderLastName} hat dir {transactionAmount} Gradido gesendet"
     }
   },
diff --git a/backend/src/locales/en.json b/backend/src/locales/en.json
index 43c48262b..a3c59e677 100644
--- a/backend/src/locales/en.json
+++ b/backend/src/locales/en.json
@@ -89,6 +89,7 @@
     },
     "transactionReceived": {
       "haveReceivedAmountGDDFrom": "You have just received {transactionAmount} GDD from {senderFirstName} {senderLastName} ({senderEmail}).",
+      "replySubject": "RE: {senderFirstName} {senderLastName} has sent you {transactionAmount} Gradido",
       "subject": "{senderFirstName} {senderLastName} has sent you {transactionAmount} Gradido",
       "title": "{senderFirstName} {senderLastName} has sent you {transactionAmount} Gradido"
     }