Peter Bowyer wrote: > On 08/07/07, Renaud Allard <[EMAIL PROTECTED]> wrote: >> >> Martin A. Brooks wrote: >>> Marc Perkel wrote: >>>> I have a reall simple way to do it. And I'm using it on several hundred >>>> domains and it works. Suppose you have 1 MX record. Add 2 more dummies. >>>> >>>> dummy1.example.com 10 >>>> real.example.com 20 >>>> dummy2.example.com 30 >>>> >>>> Gets rid of almost all your bot spam and is far faster and easier than >>>> greylisting. >>> Derrick asks about greylisting. You, effectively, give him advice about >>> making strawberry cheese cake >> I don't totally agree. The solution Mark Perkel explained is about the >> same in effect as greylisting but is much more simple to implement. >> The drawbacks of his solution are: >> -you cannot whitelist >> -you cannot control the minimum retry time >> -you must have more than one IP >> The good point is: >> -extremely simple to implement >> -very lightweight > > My big worry about this is that you're completely dependent on the > behaviour of the other MTA - you've no logging, nothing to tweak, > can't whitelist, just have to trust that the people sending you wanted > mail are going to do the 'right thing'. That alone has kept me from > trying it. >
Yes, I forgot this drawback: you have no logs of the attempts at all. However, for the behaviour, any decent MTA should try MXes one by one until one works.
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