Xstore 19V email is not working

Hi Team,

I have done below changes for email configuration but doesn't worked out, could you please suggest.

<Setting name="Email---DefaultMailHost">hproxy.*.com</Setting>

  <Setting name="Email---DefaultMailPort">3128</Setting>

  <Setting name="Email---DefaultRecipient">storeManager@thisOrg.com</Setting>

  <Setting name="Email---DefaultSender">noreply@xstore.com</Setting>

  <Setting name="Email---Receipt---AlwaysPromptToEmail">true</Setting>

  <Setting name="Email---Receipt---BodyMimeType">text/plain</Setting>

  <Setting name="Email---Receipt---From">store@xstore.com</Setting>

  <Setting name="Email---Receipt---LineCharacterCount">80</Setting>

  <Setting name="Email---Receipt---LineStyle">Courier New</Setting>

  <Setting name="Email---Receipt---SaveUpdatedEmailAddressToCustomer">false</Setting>

  <Setting name="Email---Receipt---SendEmailReceipts">true</Setting>

  <Setting name="Email---Receipt---Subject">_receiptEmailSubject</Setting>

  <Setting name="Email---SmtpDebug">true</Setting>

  <Setting name="Email---TestingModeAddressFilter">@oracle.com</Setting>

  <Setting name="Email---UseSmtpAuth">false</Setting>