Your message did not reach some or all of the intended recipients.
Subject: RE: TEST [Scanned by Freecom.net] Sent: 15/03/2019 12:55
The following recipient(s) cannot be reached:
'***********' on 15/03/2019 12:55 552 5.7.0 SPAM Content Found (VM603) 4mMqhjWnC7sFi4mMqhGUnD
This is what keeps coming back from the undeliverable mail.
"Scanned by Freecom.net" this is part of my service providers virus checking it's always been there. Up to a couple of weeks ago emails this recipient worked fine. I've since worked out it only happens when I reply to the senders email. If i start a new email it gets delivered to the recipient okay. Hope this helps?