I just have modified SPF record to a mx ip4:... ~all and included all IP addresses of the server. Since TTL was 5 seconds propogation took not too long but without luck.

Server has 4 IP addresses and customer requested to have send only mail server on 3rd and 4th addresses of their OpenVZ server. Postfix configured on 3rd address as primary instance with "/etc/postfix" configs working well.

I used:
http://www.linuxpcfix.com/configure-postfix-with-multiple-instances-on-centos/

as tutorial for multi instance postfix. What other options could causing issue?


On 30/01/18 22:32, Fabian A. Santiago wrote:
January 30, 2018 4:08 PM, "Anvar Kuchkartaev" <an...@anvartay.com> wrote:

currently spf record of both domains are the same:
"v=spf1 a mx ptr ptr:sendingdomain1.com ptr:sendingdomain2.com ~all"

Might PTR causing issue because of it is deprecated?

On 30/01/18 22:00, Fabian A. Santiago wrote:

January 30, 2018 3:56 PM, "Anvar Kuchkartaev" <an...@anvartay.com> wrote:

Hello,

I have configured server to support 2 sending IP addresses with corresponding 2 
sending domains.
DKIM, SPF, reverse hostname works correct, primary and secondary instances are 
setup with
corresponding myhostname and smtp_helo_name. smtp_bind_address also configured 
correct on both
instances. But for some reason Gmail or Microsoft Outlook detecting second 
domain as spam but first
one working well. How to debug this? I can provide any details if needed.

Best regards,

-- Anvar Kuchkartaev
an...@anvartay.com
do your spf record(s) specify both IP's? Maybe the 2nd domain uses the wrong IP 
as per your SPF
record?

--

Thanks,

Fabian S.

OpenPGP: 3C3FA072ACCB7AC5DB0F723455502B0EEB9070FC
-- Anvar Kuchkartaev
an...@anvartay.com
not sure..hmmm. mine is structured as "mx a ... -all", with the IP addresses 
associated with my email server in CIDR format. but you do what is right for your 
domains. i've read that ptr records are used when more than one MX server (such as in a 
cluster) represent a domain's valid sending server(s).

--

Thanks,

Fabian S.

OpenPGP: 3C3FA072ACCB7AC5DB0F723455502B0EEB9070FC

--
Anvar Kuchkartaev
an...@anvartay.com

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