diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 51f8e49b0..e243c9184 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -520,7 +520,7 @@ jobs:
           report_name: Coverage Backend
           type: lcov
           result_path: ./backend/coverage/lcov.info
-          min_coverage: 40
+          min_coverage: 41
           token: ${{ github.token }}
 
   ##############################################################################
diff --git a/backend/src/mailer/sendEMail.test.ts b/backend/src/mailer/sendEMail.test.ts
index f933dd9b3..5baae00ab 100644
--- a/backend/src/mailer/sendEMail.test.ts
+++ b/backend/src/mailer/sendEMail.test.ts
@@ -76,6 +76,15 @@ describe('sendEMail', () => {
       })
     })
 
+    it('calls sendMail of transporter', () => {
+      expect((createTransport as jest.Mock).mock.results[0].value.sendMail).toBeCalledWith({
+        from: `Gradido (nicht antworten) <${CONFIG.EMAIL_SENDER}>`,
+        to: 'receiver@mail.org',
+        subject: 'Subject',
+        text: 'Text text text',
+      })
+    })
+
     it('returns true', () => {
       expect(result).toBeTruthy()
     })
diff --git a/backend/src/mailer/sendTransactionReceivedEmail.test.ts b/backend/src/mailer/sendTransactionReceivedEmail.test.ts
index 7b4080622..29f227185 100644
--- a/backend/src/mailer/sendTransactionReceivedEmail.test.ts
+++ b/backend/src/mailer/sendTransactionReceivedEmail.test.ts
@@ -27,7 +27,7 @@ describe('sendTransactionReceivedEmail', () => {
       subject: 'Gradido Überweisung',
       text:
         expect.stringContaining('Hallo Peter Lustig') &&
-        expect.stringContaining('42,00') &&
+        expect.stringContaining('42,00 GDD') &&
         expect.stringContaining('Bibi Bloxberg') &&
         expect.stringContaining('Vielen herzlichen Dank für den neuen Hexenbesen!'),
     })