Official note I got from 1and1 Abuse Technican a few months ago: Be aware that all mails that we forward on customer request and that are recognized as spam will be relayed via a host with rDNS mout-xforward.<domain>.
Your sample IP is such a relay, so you may feel free to block emails from those relays at all, respect the result of blacklists (which often will list those IPs, I guess) or ignore the result of blacklists for those hostname in general. Mit freundlichen Grüßen / Kind Regards Olaf Petry Von: mailop [mailto:mailop-boun...@mailop.org] Im Auftrag von Scott Undercofler Gesendet: Mittwoch, 14. Februar 2018 15:16 An: Stefan Haunß <shau...@bfk.de> Cc: mailop@mailop.org Betreff: Re: [mailop] Postmaster contact for 1&1 https://www.spamhaus.org/query/ip/82.165.159.133 That’s what I get sending from their outbound. It’s not consistent so I assume not all of their space is listed. On Feb 14, 2018, at 4:00 AM, Stefan Haunß <shau...@bfk.de<mailto:shau...@bfk.de>> wrote: On 02/14/2018 10:51 AM, Suresh Ramasubramanian wrote: His users might want to receive mail from 1&1 users, and 1&1 outbounds being on spamhaus stops this from happening? "might want"...I don't know him so I want more details... In cases like this, it is up to 1&1 to work out the block, rather than expecting operators to put in place a whitelist. of course http://postmaster.1and1.com<http://atpscan.global.hornetsecurity.com/index.php?atp_str=QeH6JMGzK4tL0U_bv_ODDWHJ3PoKud6p0aMFpquRyT9EaoRTYvm7IdlUYDOJk9LZfxfpDuNAn6NyH7cY0jbMbLJRFCjrDWLe-XTKVdTEkGxiuh8sY3cGpHqmZQXO4pQ6DpwLCsJuO76pbDing4x_5tigu3aG7XYs91ItjMxytt_dsknlVyeoTN-b_0jIKpO409Lq-56hmarKmuWnduFuFGSEASYWABcYt7qxVBvXJr0u8dw5GgF_JjBSMug2kWtDzoOxNH9c8Hy6aFlre_az7tPcS3jiq4Y3fytB1ou3l51DhBYjOjojYmIyNzQyN2ZiYWNkIzo6I-37Qj9TJuCtE2SI7FPkidk> is public and if you read the following section carefully "IP Addresses for 1&1 Mail Servers" one might come to the conclusion that there is no problem... --srs On 14/02/18, 3:17 PM, "mailop on behalf of Stefan Haunß" <mailop-boun...@mailop.org<mailto:mailop-boun...@mailop.org> on behalf of shau...@bfk.de<mailto:shau...@bfk.de>> wrote: Scott, if you could describe your problem a bit more detailed you might get helped. why do you care of outbound IPs listed on spamhaus? are you a 1and1 customer? Cheers, Stefan On 02/14/2018 06:13 AM, - - wrote: Y'all have your outbound listed on spamhaus and I'm taking a lot of heat for deliverability issues from your space. Please contact me or request spamhaus removal for your outbounds. Your courteous support staff hung up on me when I tried to explain that the AUP code I had would not make sense to your deliverabilty team. Thanks in advance. _______________________________________________ mailop mailing list mailop@mailop.org<mailto:mailop@mailop.org> https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop _______________________________________________ mailop mailing list mailop@mailop.org<mailto:mailop@mailop.org> https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop _______________________________________________ mailop mailing list mailop@mailop.org<mailto:mailop@mailop.org> https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop -- BFK edv-consulting GmbH http://www.bfk.de<http://atpscan.global.hornetsecurity.com/index.php?atp_str=B-xg_oRmiG1EbTG0JXGwuZELhHnff6_Y3SPuIDmASMsqG_Cl9dWm1eY_PI0FMVX86Oh-vlS4ty74i1yzLLEYKRbSQVbTUyV8gNjwju9iXSjBOMuToD_wmgEl5mSGzP10kjRN497gGI6_4zEd51GB_C9fQiZTDAb0x0bQmefhsUuZlb5FTWxnmaH3lUkY5hfPBL0q7IeGB42gCqAsu2229S7ocdq7N1reF9ghOuOzhi3MBm5I8ryAMj-qC_5CyUKl0uPDeVyXNbgiXvMikQRrbQFSTLUPLNYEOSM6OiMyZjhiY2FlMzMzOTAjOjoj1WHZcpXcjj9yUSZwuKdiSg> Kriegsstraße 100 tel: +49-721-96201-1 D-76133 Karlsruhe fax: +49-721-96201-99 Managing Director: Christoph Fischer HRB105469 Mannheim _______________________________________________ mailop mailing list mailop@mailop.org<mailto:mailop@mailop.org> https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop
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