Full Error:
Your organization’s email privileges have been revoked due to non-compliance with our Terms of Use. Please contact your salesforce.com administrator or <a href=”javascript:openPopupFocusEscapePounds(‘https://login.salesforce.com/services/auth/sso/00D30000000XsfGEAS/HTAuthProvider, ‘Help’, 1024, 768, ‘width=1024,height=768,resizable=yes,toolbar=yes,status=yes,scrollbars=yes,menubar=yes,directories=no,location=yes,dependant=no’, false, false);” title=”submit a case (New Window)”>submit a case</a> to have a salesforce.com representative contact you.

App Support Reply:
This is an error message coming from Salesforce and not from A5 Documents app. You should contact your Salesforce administrator or Salesforce account rep about this email issue as error states, “Your organization’s email privileges have been revoked due to non-compliance with our Terms of Use.” You could also check Email Deliverability settings, as specified in this article and ensure “turned on”: https://help.salesforce.com/articleView?id=000334681&type=1&mode=1.