On Fri, Aug 9, 2019 at 03:55 AM, Lena wrote:
Are you sure that mail goes out from your vps IP-address?
None of IP-addresses in that range has RDNS. That's a big red flag for receivers.
My bad.? It is a /
23.? I attempted to edit the posting after I did the reply.
I host no mail server on my vps; I use my ISP's mail server(s).
>? I'm going to do some low level testing via telnet to port 25 in to the groups.io MTA from....
>? ?-? first my vps (in the 45.13.66.0/23?CIDR)
>? ?-? second from my workstation (on Comcast's 71.205.0.0/16 CIDR)
>? ... and report back.? Real Soon Now.
...... later this morning.
As identified earlier in this thread, my ISP's outbound MTA's are):
?
.? Server name: outbound00.knthost.com
.? Server IP: 45.13.64.13
?
.? Server name: outbound01.knthost.com
.? Server IP: 45.13.64.14
?
jonesy@nix5:~$ dig -x 45.13.64.13 +noall +answer
; <<>> DiG 9.10.3-P4-Ubuntu <<>> -x 45.13.64.13 +noall +answer
;; global options: +cmd
13.64.13.45.in-addr.arpa. 21463 IN? ? ? PTR? ? ?outbound00.knthost.com.
jonesy@nix5:~$ dig -x 45.13.64.14 +noall +answer
; <<>> DiG 9.10.3-P4-Ubuntu <<>> -x 45.13.64.14 +noall +answer
;; global options: +cmd
14.64.13.45.in-addr.arpa. 21599 IN? ? ? PTR? ? ?outbound01.knthost.com.
jonesy@nix5:~$
?
Jonesy
