MTA: Do not include list expansions in RCPT counts

2026-02-16 17:51:48 +00:00
parent 9f884d31c1
commit b5ff8b5952
1 changed files with 2 additions and 1 deletions
--- a/crates/smtp/src/inbound/rcpt.rs
+++ b/crates/smtp/src/inbound/rcpt.rs
@@ -46,7 +46,8 @@ impl<T: SessionStream> Session<T> {
                SpanId = self.data.session_id,
            );
            return self.write(b"503 5.5.1 MAIL is required first.\r\n").await;
-        } else if self.data.rcpt_to.len() >= self.params.rcpt_max {
+        } else if std::cmp::min(self.data.rcpt_to.len(), self.data.rcpt_oks) >= self.params.rcpt_max
+        {
            trc::event!(
                Smtp(SmtpEvent::TooManyRecipients),
                SpanId = self.data.session_id,