From f0e50477c6040e77a928f6af83ba2361090f25ed Mon Sep 17 00:00:00 2001
From: Bendik Aagaard Lynghaug <bendik.lynghaug@gmail.com>
Date: Wed, 30 Sep 2026 06:55:27 +0200
Subject: [PATCH] aggregates.yaml accepts a mail to a field of the record this
 one belongs to

The parser refused {notice.email} before the mailer could resolve it.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GT37Z1Xtfd9pUuQtMTg6Yt
---
 src/aggregates/mod.rs | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/aggregates/mod.rs b/src/aggregates/mod.rs
index f7cf2fd..54b064e 100644
--- a/src/aggregates/mod.rs
+++ b/src/aggregates/mod.rs
@@ -222,9 +222,10 @@ pub fn parse_aggregates_yaml(raw: &str) -> anyhow::Result<HashMap<String, Aggreg
                 if mail.subject.trim().is_empty() || mail.body.trim().is_empty() {
                     anyhow::bail!("aggregates.yaml: bucket {bucket:?}: state {state:?}: mail needs a subject and a body");
                 }
-                if !mail.to_submitter() && !(mail.to.contains('@') && !mail.to.contains(char::is_whitespace)) {
+                let through_a_record = crate::mail::parent_of(&mail.to).is_some();
+                if !mail.to_submitter() && !through_a_record && !(mail.to.contains('@') && !mail.to.contains(char::is_whitespace)) {
                     anyhow::bail!(
-                        "aggregates.yaml: bucket {bucket:?}: state {state:?}: mail.to must be `submitter` or one address, not {:?}",
+                        "aggregates.yaml: bucket {bucket:?}: state {state:?}: mail.to must be `submitter`, one address, or a field of the record this one belongs to like `{{notice.email}}`, not {:?}",
                         mail.to
                     );
                 }