[Dovecot] getting rid of old spam from +spam Maildir ? [ auto purging spambox]

[Wojciech Puchar]

>> is spam, but provide proper SMTP response.
>
> I personally do not recommend rejecting cases (very) close to spam/ham
> border in SMTP session
well i have very very low amount of misses

but consider generating meaningful SMTP response like "if you are not 
spammer call us, so we will fix it"