1 Reply Latest reply on Jun 23, 2020 11:24 PM by jburen

    Unable to receive email alerts (STARTTLS port 587 configured). vSphere7

    jpotrzeba Novice

      Hello, we are in the process of setting up Email Notification Alerts for vSphere 7 and we are currently having issues with receiving the emails. We have the SMTP username and password configured under 'Advanced Settings' and we want to use port 587 (STARTTLS). We are currently seeing the following messages:


      sendmail status:

      Jun 23 16:06:54 <vsphere hostname> sendmail[31988]: STARTTLS=client, relay=smtp.gmail.com., version=TLSv1.2, verify=FAIL, cipher=ECDHE-ECDSA-AES128-GCM-SHA256, bits=128/128

      Jun 23 16:06:54 <vsphere hostname> sendmail[31986]: 05NG6s0U031983: to=<personal email>, delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=121155, relay=smtp.gmail.com. [], dsn=5.0.0, stat=Service unavailable





        ----- The following addresses had permanent fatal errors -----

      <personal email>

          (reason: 530-5.7.0 Authentication Required. Learn more at)



         ----- Transcript of session follows -----

      ... while talking to smtp.gmail.com.:

      >>> MAIL From:<> SIZE=2524

      <<< 530-5.7.0 Authentication Required. Learn more at

      <<< 530 5.7.0  https://support.google.com/mail/?p=WantAuthError o66sm13883561qka.60 - gsmtp

      554 5.0.0 Service unavailable



      Are there any additional setup that is needed for vSphere in order to gmail to accept these emails?