Hallo Phil
You should ask your email service supplier.
That is where the message came from.
Looks like it is gradwell.net
OK,
Tony
On 15 Mar 2018 at 2:32, Philip van Bergen wrote about :
Subject : Re: [GMF] Reporting Spam Message
This is the message in the user's activity:
554 5.7.1 Mail (id-52092-25173) appears to be unsolicited, please resend with the code
3y5yvaza appended to email subject and ask to have your sender email whitelisted (the code
3y5yvaza changes each 24 hours).
Rgds/Phil
<snip -tm>