One of the clients on a server I manage used a very weak password on two mail accounts and both of these had been exploited by spammers. Now putting aside the new systems that will have to be implemented to prevent this in future we had the job of cleaning up. After clearing the mail [...]
I have been using greylisting successfully for some time now, however over the last few days a few have been getting through. I am currently testing nolisting on one of my domains but in the meantime I noticed that out of the 10 spam that got through in the last week 8 were from a [...]
I recently needed to clear down a qmail queue. There were no valid emails on the server but the queue was full of failed spam (blocked) This script clears the queue.