On Thu, 15 Nov 2018 at 09:40, Poliman - Serwis <ser...@poliman.pl> wrote:
> Really appreciate help. About " In other words: if you want mail to end up > at your MX, your A ip-address should not accept incoming mail. " - > currently I have spf which allow sending emails only for google servers > added as MX records (I have removed 'a' from spf record). Second - I tried > "nc colonel.com.pl 25" from virtual machine deployed on my PC in job and > result: > tot@haha:~# nc colonel.com.pl 25 > 220 s1.poliman.net ESMTP Postfix (Ubuntu) > So you are running a receiving postfix mail server on the A ip-address of colonel.com.pl. What for? G-Suite does it all for you, you shouldn't be using any other relaying mail server - just send and receive through Gmail. If you still want to run postfix for outgoing mail on the machine which is receiving colonel.com.pl:25, you can stop postfix processing incoming mail there with: postconf inet_interfaces=loopback-only
