Why do my clients get notifications from no-reply@spuritmail.com and not from the e-mail indicated in "Email Templates" section?

To indicate your email as a sender, you will need to verify it. If you don't verify your e-mail, then the email will be sent from the email-address no-reply@spuritmail.com.

While adding/editing email template in Email Templates section, there is an automatic check of email address that is set in Reply-To field. If the email has not been verified before, then an email with "Amazon SES Address Verification Request" subject will be sent to this email address. To verify your email you need to click on the link from the received email. Within an hour our app will check the status of your email address and whether it has been successfully verified. Once this has been done all notifications to users will be sent from your email address.