On Tue, Apr 17, 2012 at 11:04:43AM +0100, Sam Jones wrote: > Just imagine whitelisting a shared, spammy server because a domain is > hosted on it. Naturally it will probably come through greylisting in the > end anyway, but I'd not go out of my way to make it easy on them!
It's fine to imagine many worst case scenarios, but it doesn't mean that you actually ever encounter one or that they even exist. A shared server or similar could be sending both ham and spam. I'm sure you would rather receive the ham instead of rejecting it straight away. After all, you do have _more_ defence layers than just the simple rbl/greylisting at MTA stage which we are talking about bypassing here? Someone commented about autoresponders.. every good admin should block them to suspicious mails anyway. I sure have lots of processing on my relay which prevents autoreplying to anything even smelling like spam. Stupid Outlookers..
