I'm posting here because Verizon provides no way whatsoever to get problems resolved, short of spending six hours on the phone, and I'm not about to do that. Error below. How do I get someone at Verizon to fix this mess?
Your message cannot be delivered to the following recipients:
Recipient address: {edited for privacy}
Reason: Remote SMTP server has rejected address
Diagnostic code: smtp;550 #5.1.0 Address rejected.
Remote system: dns;omzsmtpe02.verizonbusiness.com (TCP|206.46.173.15|62308|199.249.25.209|25) (omzsmtpe02.verizonbusiness.com ESMTP