Hi.
I want to send an email from another VM (192.168.6.15) on my local network via PHP script. It was working on Zimbra, but Mailcow blocks it for some reason
According to the Unauthenticated Relaying document, I have added my local addresses 192.168.6.0/24, but it still fails to send.
data/conf/postfix/extra.cf
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 [fe80::]/10 172.22.1.0/24 [fd4d:6169:6c63:6f77::]/64 192.168.6.0/24
data/conf/rspamd/local.d/options.inc
local_addrs = [127.0.0.0/8, ::ffff:127.0.0.0/104, ::1/128, fe80::/10, 172.22.1.0/24, fd4d:6169:6c63:6f77::/64, 192.168.6.0/24];
Something else must be blocking it. Here is the postfix log.

Any ideas?
Thank you