Le 17/03/2019 à 08:44, Matthew McGehrin a écrit : > Hi Johannes, > > Gone are the days of being able to send normal emails to these > providers. They use automated algorithms that block your email > automatically. Your IP reputation has a lot to do with it as well, > along with the IPs in your /24. For example, looking up your IP > reputation, I see that this /24 has several mail providers, so while > you might not be sending the actual spam, other IPs in your /24. Also, > forwarded email can have the same impact, as you are forwarding spam, > and not necessarily sending it directly. > > See also: > > https://www.talosintelligence.com/reputation_center/lookup?search=37.120.172.118 > > > 37.120.172.166 mail.digi-media-net.de Yes 0.0 1.7 No Poor > > You might need to use one of the commercial providers, such as Amazon > or Sendgrid, to send your outbound emails, since the large providers > will not block them as easily. > > Matthew > > >
I had some problem ending emails to some businesses and found they used MS for hosting their email system. In taht case, I always signal in the customer satisfaction form that their email hoster destreoys the messages sent by their customers and that made me less likely to do business with them again.
