Martin Gerdes schrieb:
>| (
127.0.0.2: 550-
https://www.spamhaus.org/sbl/query/SBL175032) - Your
>| mailserver is 550 blacklisted.
>
> Wenn mein Englisch mich nicht trügt, ist das seit dem 08.11.2015 so, 1&1
> scheint das nicht groß zu kratzen, dabei gehört 1&1 sogar zu den
> Sponsoren dieser Körperschaft.
Man hätte ja dem Link in der Mailserver-Antwort folgen können und dann
erfahren, dass Spamhaus diesen Server mit der Zustimmung und auf
Wunsch von 1&1 blockt, und _warum_ das der Fall ist:
| Spamhaus lists this IP address and other IP addresses assigned to
|
mout-xforward.gmx.net,
mout-xforward.web.de, and certain other
| outbound mailservers belonging to 1 and 1 Internet because of
| uncontrolled emission of substantial quantities of spam. We list
| these IPs with the knowledge and approval of 1 and 1 Internet. We
| recommend that our users not accept email from these IP addresses.
|
| If your email was blocked by this SBL, please do not contact
| Spamhaus; we cannot help you. Contact GMX directly, as described
| below.
|
| =====
|
| In order to provide customers' emails and mailboxes with a high level
| of protection, incoming messages are automatically checked by GMX
| incoming filters for spam, known viruses, Trojans and worms; the
| affected emails are then adequately filtered.
|
| Outbound emails are also automatically sorted in order to avoid
| unsolicited e-mails (spam emails) being dispatched from GMX
| customers' mailboxes and thereby protect other users.
|
| These filters analyse and sort the email messages based on known spam
| criteria. When the spam filtering software recognises an email as
| spam, the email is sent through a dedicated mail server. As a result,
| the message may be rejected by the recipient' server and
| consequently, the sender may receive an error message.
|
| Should your legitimate emails being incorrectly classified as spam,
| please contact the GMX Customer Service filling in the form provided
| in this link:
http://postmaster.gmx.de/en/contact/
Kurz und gut: GMX filtert auch ausgehende Mail, und wenn es sie für
Spam hält, leitet es sie über Postausgangsserver, die bewusst auf RBLs
gelistet sind.
-thh