inbound-upstream-result: the upstream's answer in the Inbound log

The owner, 2026-10-16: the Inbound log lacks the upstream's answer - "Не
понятна судьба письма: принято, отклонено, хост не доступен"; the result
in the row only, a page per message later if needed. Mockups 5348330 and
46b90d2, plan 295d72e.

- Migration 0012: inbound_spam_log gains queue_id, upstream_status ('',
  queued, held, sent, deferred, bounced; CHECK), upstream_relay,
  upstream_reply, upstream_at, and a partial index on queue_id. Schema 12.
- The inbound journal milter writes an accepted row with the queue id of
  end-of-message and "queued" ("held" when the filter had it held), the
  recipient as Postfix logs it (recipientAsLogged), after detaching older
  rows of a queue id Postfix uses again; no queue id, no result.
- The tailer: a delivery line no send-log row took goes to the journal -
  status, relay= ("" for none), the reply after the first status=, cut to
  255 printable bytes, the line's time; queued/held/deferred rows only,
  sent and bounced final. qmgr's expiry makes them bounced, keeping the
  last reply. cleanup's "removed (" detaches rows of a message never
  queued. Addresses in delivery lines are read by Postfix's quoting
  (loggedAddress): a quoted RCPT TO cannot end one early.
- The page: an Upstream column - a plain tag for queued and held, else a
  tag opening the host, the reply, when and what follows; "—" for refused
  mail and older rows. Help (word for word with the mockup), guide,
  architecture, security, schema-migrations, CHANGELOG.

Reviewed before the commit (technical and security, 2026-10-16); the plan
lists each finding and what it became.

Tests: store (results, finality, expiry, held, a reused id, the queue-id
index in every plan), milter (queue id, held, quoted recipient, no {i}),
logtail (relay and reply, a forged quoted recipient, Run hands the journal
what the send log did not take, cleanup's removal), view (the column, held,
null sender), e2e (both relayed messages sent with the sink's 250; an
upstream refusing connections deferred with the reason and no host, then
expired to bounced; the refused row has none). go vet + go test (26
packages) and make e2e on the test server for this tree.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

internal/web/view/fixtures_test.go

@@ -448,29 +448,50 @@ func inLogFixture() *InLog {
 	p := NewInLog(admin(), 90, []string{"lists.example.org", "acme.io"},
 		InLogFilter{From: "2026-09-14", To: "2026-09-21"})
 	var id int64
-	row := func(clock, from, client, to, subject, decision, engine, detail string) InLogRow {
-		at, err := time.Parse("2006-01-02 15:04:05", "2026-09-21 "+clock)
+	clock := func(c string) time.Time {
+		at, err := time.Parse("2006-01-02 15:04:05", "2026-09-21 "+c)
 		if err != nil {
 			panic(err)
 		}
-		id++
-		return p.NewRow(InLogRowInput{ID: id, Listable: true, At: at, From: from, Client: client, To: to, Subject: subject,
-			Decision: decision, Engine: engine, Detail: detail})
+		return at
 	}
-	return p.WithRows([]InLogRow{
-		row("14:00:18", "t.berg@uni.example", "192.0.2.77", "dev@lists.example.org", "Re: [dev] patch series v3",
-			"accept", "rspamd", "no action, score 0.40 / 15.00"),
-		row("13:59:02", "invoice@partner-billing.example", "203.0.113.140", "owner@lists.example.org", "Outstanding invoice — action required",
-			"accept", "rspamd", "add header, score 9.80 / 15.00; PHISHING(5.00) FORGED_SENDER(3.00) R_SPF_FAIL(1.00)"),
+	// up is what the upstream answered: status, host, reply, when.
+	type up struct{ status, relay, reply, at string }
+	upRow := func(c, from, client, to, subject, decision, engine, detail string, u up) InLogRow {
+		id++
+		in := InLogRowInput{ID: id, Listable: true, At: clock(c), From: from, Client: client, To: to, Subject: subject,
+			Decision: decision, Engine: engine, Detail: detail,
+			Upstream: u.status, UpstreamRelay: u.relay, UpstreamReply: u.reply}
+		if u.at != "" {
+			in.UpstreamAt = clock(u.at)
+		}
+		return p.NewRow(in)
+	}
+	row := func(c, from, client, to, subject, decision, engine, detail string) InLogRow {
+		return upRow(c, from, client, to, subject, decision, engine, detail, up{})
+	}
+	const host = "mx.upstream.example[198.51.100.5]:25"
+	sent := upRow("14:00:18", "t.berg@uni.example", "192.0.2.77", "dev@lists.example.org", "Re: [dev] patch series v3",
+		"accept", "rspamd", "no action, score 0.40 / 15.00",
+		up{"sent", host, "250 2.0.0 Ok: queued as CE05D10261D", "14:00:19"})
+	bounced := upRow("13:59:02", "invoice@partner-billing.example", "203.0.113.140", "owner@lists.example.org", "Outstanding invoice — action required",
+		"accept", "rspamd", "add header, score 9.80 / 15.00; PHISHING(5.00) FORGED_SENDER(3.00) R_SPF_FAIL(1.00)",
+		up{"bounced", host, "550 5.7.1 Message rejected as spam by the upstream filter", "13:59:04"})
+	rest := []InLogRow{
 		row("13:57:41", "promo@bulk.example", "198.51.100.90", "sales@lists.example.org", "",
 			"reject", "postfix", "550 5.1.1 <sales@lists.example.org>: Recipient address rejected: User unknown in relay recipient table"),
 		row("13:51:30", "billing@partner.example", "198.51.100.12", "owner@lists.example.org", "",
 			"reject", "rspamd", "5.7.1 Spam message rejected"),
 		row("13:44:02", "hr@partner.example", "192.0.2.31", "jobs@acme.io", "",
 			"tempfail", "rspamd", "4.7.1 Try again later"),
-		row("13:30:55", "noreply@github.example", "192.0.2.200", "security@lists.example.org", "[advisory] new report",
-			"accept", "rspamd", "no action, score -98.10 / 15.00; SELFPOST_ALLOW_FROM(-100.00) R_DKIM_ALLOW(-0.20)"),
-	}, 1, 38)
+		upRow("13:30:55", "noreply@github.example", "192.0.2.200", "security@lists.example.org", "[advisory] new report",
+			"accept", "rspamd", "no action, score -98.10 / 15.00; SELFPOST_ALLOW_FROM(-100.00) R_DKIM_ALLOW(-0.20)",
+			up{"deferred", "", "connect to mx.upstream.example[198.51.100.5]:25: Connection refused", "13:45:12"}),
+	}
+	// The newest row is a message not tried yet; it is the seventh written.
+	queued := upRow("14:00:31", "ci@builds.example", "192.0.2.90", "dev@lists.example.org", "[ci] nightly build passed",
+		"accept", "rspamd", "no action, score 1.10 / 15.00", up{status: "queued"})
+	return p.WithRows(append([]InLogRow{queued, sent, bounced}, rest...), 1, 38)
 }
 
 // inFilterListsFixture is the mockup's Filter lists: three senders denied, two