Hi Niels, On Sun, Aug 06, 2017 at 07:19:04PM +0200, Niels Kobschätzki wrote: > > > On 6. Aug 2017, at 18:40, Walter Alejandro Iglesias <w...@roquesor.com> > > wrote: > > > >> On Sun, Aug 06, 2017 at 06:02:25PM +0200, Jesper Wallin wrote: > >> Like Martijn pointed out, you're sending mail from a IP which is not > >> intended for mail-servers. > > > > This was my main question. What is an "IP intended for mail-servers"? > > The question should be "what are IPs **not** intended for mail-servers?" > > The ranges of ISPs for home-users and the dsl-, cable-, whatever-connection > are well-known and pretty much on all of the blacklists since the only thing > you can usually expect from them is spam from botnets. Legitimate mails are > rather rare from those ranges, thus they get blocked.
I cannot tell what happens in pratice, I've never run a big mail server. But the reasons that come to my mind someone wants to run their own server (at home or at a small enterprise) are opposed to what you state. Why would you want to send spam from the fixed IP you're paying for (in my case 5 euros mouth)? The question is still unanswered. What determines those "ranges", who regulates that? > To not get blocked by google and hotmail you need an IP from some > hosting-provider, university or something like this; Which is the procedure followed by those entities to get an IP in what you called the "authorized range"? Authorized by who? > a PTR-record for your server I already have this. > and at least an SPF-, even better a DKIM-record. I had these at first and removed them after seeing they don't help. > And if you > ever send out mail, you maybe want a secondary IP for temporary > failover-cases if you land temporarily on a black list. I have just two personal addresses. I don't need that complication. :-) > > Niels
