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+DMARC Reporting done via Rspamd DMARC Module.
+
+Offical configuration options and documentation can be found here: https://rspamd.com/doc/modules/dmarc.html
+
+**Important:**
+1. Before use config examples from this document please adjust them, change `example.com` and `Example` to your actual data
+2. DMARC reporting require additional attention, especially at first days
+3. Your reports for all server will be send from one reporting domain. Recommended to use parent domain of your `MAILCOW_HOSTNAME`, f.e:
+    - if your `MAILCOW_HOSTNAME=mail.example.com` then Reporting `domain = "example.com";`
+    - set `email` from same domain also, `email = "noreply-dmarc@example.com";`
+4. This optional, but recomended step: create `noreply-dmarc` email user in mailcow to handle bounces.
+    - Go to mailcow admin UI → Configuration → Mail Setup → Mailboxes → Add mailbox → Create mailbox `noreply-dmarc`, please choose correct domain
+    - In case you want silently discard bounces: login in SOGo from this account and go to Preferences → Mail → Filters → Create Filter → Add action → Provide name, f.e: `noreply` and add action: Discard the message and save filter
+    - In case you plan to resend a copy of reports to yourself: you need add condition to previous filter example `From is not noreply-dmarc@example.com`
+
+## Enable DMARC Reports
+Create or edit file in `data/conf/rspamd/local.d/dmarc.conf` and set content to:
+```
+reporting = true;
+send_reports = true;
+report_settings {
+    org_name = "Example";
+    domain = "example.com";
+    email = "noreply-dmarc@example.com";
+    from_name = "Example DMARC Report";
+    smtp = "postfix";
+    smtp_port = 25;
+    helo = "rspamd";
+    retries = 3;
+    hscan_count = 1500
+}
+```
+
+## Disable DMARC Reports
+To disable reports set `send_reports` to `false`
+
+## Send a copy reports to yourself
+To get copy of own generated reports you can add `additional_address = "noreply-dmarc@pnnsoft.com";` in `report_settings` section.
+This useful in case:
+- you want to check that your DMARC Reports send correctly, e.g.: check that they signed by DKIM, etc.
+- you want to analyze own reports to get statics data, f.e: use with ParseDMARC or other analytic system
+
+## DMARC Force actions 
+This module also allows to enable force actions based on sender DMARC policy to reject or quarantine emails which has failed policy.
+This good from security point, but not allow whitelist broken senders. This up to your choice enable it or not.
+
+To enable it, add to end of `data/conf/rspamd/local.d/dmarc.conf`:
+```
+actions {
+    quarantine = "add_header";
+    reject = "reject";
+}
+```