Postfix config with postscreen AND smtp port

Hello,
I have a multiple servers ispc configuration with a mail server.
On this, I want a specific postfix configuration : not sure that's possible.
On port 25, I put postcreen and so remove 'no authentication' connections !
That's good!
But, now I want my rspamd to send dmarc report !
As per documentation (https://www.rspamd.com/doc/modules/dmarc.html)

Code:

From Rspamd 3.0 you should use rspamadm dmarc_report tool called manually (e.g. via cron or systemd timers) to send reports, this should be done either daily or hourly depending on traffic. You also need a working MTA running on a specific host that allows email to be sent with no authentication/ssl (preferrably local MTA).

So that I need to reopen a port without authentification...
I decide to use port 2525
My master.cf starts like

Code:

2525      inet  n       -       y       -       -       smtpd
smtp      inet  n       -       y       -       1       postscreen
smtpd     pass  -       -       y       -       -       smtpd
dnsblog   unix  -       -       y       -       0       dnsblog
tlsproxy  unix  -       -       y       -       0       tlsproxy
submission inet n       -       y       -       -       smtpd

I wonder if it is correct...

 

Thank you very much

For step done, but I am still quite worried about dmarc report setting in rspamd.
Dmarc reporting module doesn't mention any password for email...

Code:

reporting {
    # Required attributes
    enabled = true; # Enable reports in general
    email = '[email protected]'; # Source of DMARC reports
    domain = 'mydom.tld'; # Domain to serve
    org_name = 'myorg'; # Organisation
    # Optional parameters
    bcc_addrs = ["[email protected]"]; # additional addresses to copy on reports
    report_local_controller = false; # Store reports for local/controller scans (for testing only)
    helo = 'rspamd.mydom.tld'; # Helo used in SMTP dialog
    smtp = '127.0.0.1'; # SMTP server IP
    smtp_port = 2525; # SMTP server port
    from_name = 'Rspamd.mydom.tld'; # SMTP FROM
    msgid_from = 'rspamd'; # Msgid format
    max_entries = 1k; # Maxiumum amount of entries per domain
    keys_expire = 2d; # Expire date for Redis keys
    #only_domains = '/path/to/map'; # Store reports merely from those domains
}

So, I did that :
I create a mail box to send report disabling sending and imap/pop


Next, I create a relay recipient


and a route transport


But I am not really sure as it is a transport to the same server (my mail server...)

 

Also, route transport is for domain and not email...
I don't know how to test that ?

 

I did so and it works.
Thank you

 

All this brings question to me
When setting up multiple servers conf, non mail servers are set as 'satellite' and relay to mail server.
I imagine that none of all postfix (satellites and mail) can't be used as relay by other external servers to my conf ?
It seems obvious but i prefer ask