I can’t send emails. I’m not a programmer and I’ve some difficulties with computers.
Is there anyone who can help me?
This is the message I receive when I try to send emails:
Delivery not authorized, message refused
Your message wasn’t delivered because the email admin for the organization ‘mxp2.local’ created an email rule restriction. Please contact the email admin for that organization and ask them to remove or update the rule restriction.
For more information about this error, see DSN code 5.7.1 in Exchange Online - Office 365.