> > This is a difficult question. > I disagree. Just that because you disagree makes the question not simple :)
> 2. Gmail is not squeaky clean, it's no surprise that they end up in Of course, but then it gets people complaining why they cannot receive mails from gmail. > 5. A reject_rbl_client "false positive" results in the sender getting > an immediate bounce. The sender knows the mail was not delivered. Then you are lucky, your are only dealing with educated senders. Regular sender will disregard/delete a bounce message and will simply complain his message was not delivered. > 1. Again, know your DNSBL. > 3. If Zen makes a mistake or gets too aggressive, I guarantee yours > will not be the only site blocking mail from that sender. The > sending site is going to have to resolve the issue. That means you must spend more time on checking that the quality of the RBL you are using is constant. Olivier
