On 11/27/23 16:31, Philip Prindeville wrote:
We're being blacklisted by att.net with the following message: (reason: 550 5.7.1 Connections not accepted from servers without a valid sender domain.flph840 Fix reverse DNS for 24.116.100.90) I don't know what the hell is up with these pinheads: philipp@ubuntu22:~$ dig -tmx redfish-solutions.com. @8.8.8.8 ; <<>> DiG 9.18.12-0ubuntu0.22.04.3-Ubuntu <<>> -tmx redfish-solutions.com. @8.8.8.8 ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 58379 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 512 ;; QUESTION SECTION: ;redfish-solutions.com. IN MX ;; ANSWER SECTION: redfish-solutions.com. 21600 IN MX 10 mail.redfish-solutions.com. ;; Query time: 48 msec ;; SERVER: 8.8.8.8#53(8.8.8.8) (UDP) ;; WHEN: Sun Nov 19 15:08:29 MST 2023 ;; MSG SIZE rcvd: 71 philipp@ubuntu22:~$ dig -ta mail.redfish-solutions.com. @8.8.8.8 ; <<>> DiG 9.18.12-0ubuntu0.22.04.3-Ubuntu <<>> -ta mail.redfish-solutions.com. @8.8.8.8 ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 19570 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 512 ;; QUESTION SECTION: ;mail.redfish-solutions.com. IN A ;; ANSWER SECTION: mail.redfish-solutions.com. 21600 IN A 24.116.100.90 ;; Query time: 72 msec ;; SERVER: 8.8.8.8#53(8.8.8.8) (UDP) ;; WHEN: Sun Nov 19 15:08:39 MST 2023 ;; MSG SIZE rcvd: 71 philipp@ubuntu22:~$ dig -x 24.116.100.90 @8.8.8.8 ; <<>> DiG 9.18.12-0ubuntu0.22.04.3-Ubuntu <<>> -x 24.116.100.90 @8.8.8.8 ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 2371 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 512 ;; QUESTION SECTION: ;90.100.116.24.in-addr.arpa. IN PTR ;; ANSWER SECTION: 90.100.116.24.in-addr.arpa. 21600 IN PTR mail.redfish-solutions.com. ;; Query time: 68 msec ;; SERVER: 8.8.8.8#53(8.8.8.8) (UDP) ;; WHEN: Sun Nov 19 15:08:55 MST 2023 ;; MSG SIZE rcvd: 95 philipp@ubuntu22:~$ So that's not the problem. You're supposed to be able to get the blacklisting fixed if you email abuse_...@abuse-att.net <mailto:abuse_...@abuse-att.net> but I've emailed them from 3 different addresses and have yet to get a response much less a resolution. Has anyone else had to deal with this bullocks and gotten it resolved?
That has never worked for me. I've only been met with radio silence.