Hi Fellow Admins,
We have recently migrated our postfix mail server to ZCS 8.
After around a weeks of hushes and gushes we have finally settled all issues somehow, though some are still to be take care of.
One strange issue which I want to address here is we were maintaining a emai blacklist file with postfix previously which we intend to continue in current enviornment as well.
But strangly I found that the email addresses that we have blocked in "protected recepients" file are still able to receive email if sent from ThunderBird or Outlook email client. But when I am using Zimbra Desktop Client the same recepient wont receive email, instead I get an error message "Recipient address rejected: Access denied".
I checked in maillogs but could not find any particular message.
For us this blocked email address is a serious issue. Please help me to resolve this issue.
Any help is greatly appreciated.