Mail4 has never been switched to DSPAM and even no complaints for this. It’d be better if you create a ticket with some more details about your issue.
A client of mine just reported the 5.6 error on mail6.
Create a ticket and attach the mails (dont paste). I’ll take care of them.
What email? You expect me to have my client track down his client and retrieve an email from their inbox? Isn’t going to happen, I can tell you that now.
What is the problem? I thought it was resolved. Why are we adding it to more servers if it isn’t resolved?
I think i missed this thread.
FYI, this is not a problem, but just an antispam message where a message is bounced if considered as spam. You get this if your client has anti-spam preferences set to remove. Your client can whitelist the sender or disable antispam or change preferences to mark as spam or move to a different mailbox.