On 2021-07-05 09:41:02 -0400, Polyna-Maude Racicot-Summerside wrote: > Hi, > > On 2021-07-05 9:35 a.m., Greg Wooledge wrote: > > On Mon, Jul 05, 2021 at 09:23:03AM -0400, Polyna-Maude Racicot-Summerside > > wrote: > >> Reporting-MTA: dns; premium58.web-hosting.com > >> > >> Action: failed > >> Final-Recipient: rfc822;bjoern.ri...@greenbone.net > >> Status: 5.0.0 > >> Remote-MTA: dns; mail.greenbone.net > >> Diagnostic-Code: smtp; 550 X-Host-Lookup-Failed: Reverse DNS lookup > >> failed for 162.213.253.79 (failed) > > > > unicorn:~$ host 162.213.253.79 > > 79.253.213.162.in-addr.arpa domain name pointer cyrania.com. > > unicorn:~$ host cyrania.com. > > cyrania.com has address 172.67.185.109 > > cyrania.com has address 104.21.59.235 > > cyrania.com has IPv6 address 2606:4700:3031::6815:3beb > > cyrania.com has IPv6 address 2606:4700:3031::ac43:b96d > > cyrania.com mail is handled by 0 _dc-mx.f1202d9a4fb3.cyrania.com. > > > > Your "reverse" (PTR record for 162.213.253.79) doesn't match. Which is > > to say, none of the "A" results from cyrania.com. match the original > > IP address of 162.213.253.79. > > > So is there something I can do on my side ? > I don't have control over the IMAP/SMTP server (premium58.web-hosting.com).
premium58.web-hosting.com is not your SMTP submission server: $ host premium58.web-hosting.com premium58.web-hosting.com has address 198.54.120.203 What is this 162.213.253.79 IP address? Can you control its reverse? Is cyrania.com a domain that you own? -- Vincent Lefèvre <vinc...@vinc17.net> - Web: <https://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)
