Hello,
My client is trying to email a customer of Plusnet but they are getting an error message - '552 Spam Message Rejected'.
I'm unsure of what could be causing this - could someone please help to diagnose the issue as my client needs to send his customer an invoice for a purchase.
The email was sent from ian@antiquefurniture.tv - this is a google mailbox and (I'm his developer) I've checked DKIM and SPF is fully set up on the domain.
Final-Recipient: rfc822; #####@#####.force9.co.uk
Action: failed
Status: 5.0.0
Remote-MTA: dns; mx.avasin.plus.net. (212.159.9.200, the server for the domain #####.force9.co.uk.)
Diagnostic-Code: smtp; 552 Spam Message Rejected
Last-Attempt-Date: Wed, 20 Dec 2017 07:25:51 -0800 (PST)
Mark.
