On Fri, 23 Feb 2018 12:54:10 -0000 (UTC) Dan Purgert <d...@djph.net> wrote:
> > While this may be true in many cases, my local (home) relay *only* > accepts relay requests from hosts within the scope of my domain. > Granted, now that I've moved ISPs, some remote mailhosts (hotmail, > I'm lookin' at you) like to reject things. Gonna have to find what > their relay is, so I can relay through their mailserver and make it > look legit. > > Funny thing is, gmail, att/yahoo, and others all happily accept the > mail. > What the mail admin accepts is a matter of taste, and whether any blacklists are used. I have my own blacklist (which contains a couple of /8s), plus a list of about 20 country tlds, plus a few really egregious ISPs that I reject. I did also reject servers without proper PTR records, but I've relaxed that now as so many domestic accounts seem to have them and so many small outsourcing email providers don't. I require a sending domain and HELO that are resolvable in public DNS, and I request an ident on a thirty-second timeout, which many spammers give up on. Every little helps... -- Joe
