1 files changed, 51 insertions, 0 deletions

diff --git a/src/mailman/interfaces/mailinglist.py b/src/mailman/interfaces/mailinglist.py
index 359cd5069..44376a7b2 100644
--- a/src/mailman/interfaces/mailinglist.py
+++ b/src/mailman/interfaces/mailinglist.py
@@ -24,6 +24,25 @@ from zope.interface import Attribute, Interface
 
 
 @public
+class DMARCMitigateAction(Enum):
+    # Mitigations to apply to messages From: domains publishing an applicable
+    # DMARC policy, or unconditionally depending on settings.
+    #
+    # No DMARC mitigations.
+    no_mitigation = 0
+    # Messages From: domains with DMARC policy will have From: replaced by the
+    # list posting address and the original From: added to Reply-To: or Cc:.
+    munge_from = 1
+    # Messages From: domains with DMARC policy will be wrapped in an outer
+    # message From: the list posting address.
+    wrap_message = 2
+    # Messages From: domains with DMARC policy will be rejected.
+    reject = 3
+    # Messages From: domains with DMARC policy will be discarded.
+    discard = 4
+
+
+@public
 class Personalization(Enum):
     none = 0
     # Everyone gets a unique copy of the message, and there are a few more
@@ -216,6 +235,38 @@ class IMailingList(Interface):
     def confirm_address(cookie=''):
         """The address used for various forms of email confirmation."""
 
+    # DMARC attributes.
+
+    dmarc_mitigate_action = Attribute(
+        """The mitigation to apply to messages from a DMARC matching domain.
+
+        This is a  DMARCMitigateAction to be applied to messages From: a domain
+        publishing DMARC p=reject or quarantine, and possibly unconditionally
+        depending on the setting of dmarc_mitigate_unconditionally.
+        """)
+
+    dmarc_mitigate_unconditionally = Attribute(
+        """Should DMARC mitigations apply unconditionally?
+
+        A flag indicating whether to apply dmarc_mitigate_action to all
+        messages, but only if dmarc_mitigate_action is other than reject or
+        discard.
+        """)
+
+    dmarc_moderation_notice = Attribute(
+        """Text to include in any DMARC rejected message.
+
+        Rejection notices are sent when DMARCMitigateAction of reject applies.
+        """)
+
+    dmarc_wrapped_message_text = Attribute(
+        """Additional MIME text to include in DMARC wrapped messages.
+
+        This text is added as a separate text/plain MIME part preceding the
+        original message part in the wrapped message when DMARCMitigateAction
+        of wrap_message applies.
+        """)
+
     # Rosters and subscriptions.
 
     owners = Attribute(