Thank you for your request. To disable such email notifications please navigate to your GroupDocs account settings and uncheck “Send system-wide email notifications” checkbox which placed in the Apps->Misc as shown on this screenshot.
If you will have more questions please feel free to contact us.
If I turn off system wide email notifications, will that also turn off the signature notifications as well? I want to keep those going as we use custom signature notifications.
Thank you for coming back. In such case you should disable email notification when you create a new conversion. In the GroupDocs dashboard you can do it as shown on this screenshot .
From the API you can do it by setting Null to the “emailResults” parameter in the “Convert” method.