I used the new feature to block keywords (attachment and content filter) and it worked when an e-mail gets received. However, when a mail is already stored in the mailbox(es) and I do a manual scan, it seems that it does not use the attachment filter rules so that it does not find the blocked keywords/mails containing them. However, when the administrator wants to clear harmful mails within all mailboxes afterwards, it would be nice to be able to do that with a manual scan and such a keyword rule. Is this behavior as expected or a bug?
nothing found ( but I sent a mail including that keyword and when I send that mail again after creation of that rule, it gets blocked):