Chris Curtis wrote:
However, if some people are getting good results with these methods, has anybody tried having three MX entries with the middle one being the live one?
....
Doubt it would stop much in my own opinion.
Cheers B
I am not in a position to dispute the empirical evidence presented at http://nolisting.org, but it would seem to imply that there are still a large number of bots that are still just using the primary MX. My observations of the domain I have applied this to are that it is definitely stopping connections. I am not assuming that it is a silver bullet, it quite clearly is not. But with 98% of the inbound on our email servers last month being spam, any reduction in 'cr*p' would seem to be worth it, particularly as this one doesn't cost anything and is reasonably easy to implement. BUT, I am a little anxious as to whether there is a down side. Glen.