On Tue, 18 Mar 2014 11:23:12 -0300 Giancarlo Razzolini wrote: > A static IP address without a meaningful reverse name mapping such as > mail.myopenbsdhomeserver.com isn't very useful. Most ISP's wont do > reverse mappings or will charge your eyeballs for it.
It's perfectly useful, mail is only dropped by some idiotic systems (already mentioned) that don't understand or care about more effective anti spam methods or the little guy and when the big guys cause almost all of the spam. > Also, you can host > anything these days using dynamic ip addresses. If your IP address > changes you will stay a few seconds without receiving any mail, and also > may have some mail delayed, but you shouldn't lose anything. Except that if whoever has just been using that ip address is part of a botnet or likes mass mailing then you may well get blocked as you have no trackable reputation. There are things like DKIM but they aren't universally checked yet and serve more as assurance than combating spam. DKIM should be coupled with spf too.
