diff --git a/server/src/db/repositories/MailIngestCandidates.repository.ts b/server/src/db/repositories/MailIngestCandidates.repository.ts
index d9373197c..74f392f4b 100644
--- a/server/src/db/repositories/MailIngestCandidates.repository.ts
+++ b/server/src/db/repositories/MailIngestCandidates.repository.ts
@@ -151,7 +151,11 @@ export class MailIngestCandidatesRepository extends TrekRepository<MailIngestCan
   }
 
   async findById(id: number): Promise<MailIngestCandidateRow | null> {
-    const row = await this.db().selectFrom('mail_ingest_candidates').selectAll().where('id', '=', id).executeTakeFirst();
+    const row = await this.db()
+      .selectFrom('mail_ingest_candidates')
+      .selectAll()
+      .where('id', '=', id)
+      .executeTakeFirst();
     return row ?? null;
   }
 
@@ -208,7 +212,7 @@ export class MailIngestCandidatesRepository extends TrekRepository<MailIngestCan
     return Number(row.n);
   }
 
-  /** Whether a booking of this content was added to the trip from a mail and undone: it is not added on its own again. */
+  /** Whether a booking of this content went into the trip from a mail and was undone: never added again on its own. */
   async wasUndoneInTrip(tripId: number, contentHash: string): Promise<boolean> {
     const row = await this.db()
       .selectFrom('mail_ingest_candidates')
@@ -328,7 +332,11 @@ export class MailIngestCandidatesRepository extends TrekRepository<MailIngestCan
         if (confirmation) either.push(eb('confirmation_number', '=', confirmation));
         if (startFrom && startTo) {
           either.push(
-            eb.and([eb('type', '=', type), eb('reservation_time', '>=', startFrom), eb('reservation_time', '<=', startTo)]),
+            eb.and([
+              eb('type', '=', type),
+              eb('reservation_time', '>=', startFrom),
+              eb('reservation_time', '<=', startTo),
+            ]),
           );
         }
         // An empty list reads as false: a probe with neither names nothing.
diff --git a/server/src/db/repositories/MailIngestPrefs.repository.ts b/server/src/db/repositories/MailIngestPrefs.repository.ts
index aafd86c93..f942a2a64 100644
--- a/server/src/db/repositories/MailIngestPrefs.repository.ts
+++ b/server/src/db/repositories/MailIngestPrefs.repository.ts
@@ -30,7 +30,11 @@ export class MailIngestPrefsRepository extends TrekRepository<MailIngestPrefs> {
   }
 
   async findForUser(userId: number): Promise<MailIngestPrefsRow | null> {
-    const row = await this.db().selectFrom('mail_ingest_prefs').selectAll().where('user_id', '=', userId).executeTakeFirst();
+    const row = await this.db()
+      .selectFrom('mail_ingest_prefs')
+      .selectAll()
+      .where('user_id', '=', userId)
+      .executeTakeFirst();
     return row ?? null;
   }
 
diff --git a/server/tests/unit/db/repositories/MailIngestAddresses.repository.test.ts b/server/tests/unit/db/repositories/MailIngestAddresses.repository.test.ts
index 85d4f4b71..d8e8ab550 100644
--- a/server/tests/unit/db/repositories/MailIngestAddresses.repository.test.ts
+++ b/server/tests/unit/db/repositories/MailIngestAddresses.repository.test.ts
@@ -62,7 +62,13 @@ describe('MailIngestAddressesRepository', () => {
   it('revokes the live address of one scope only, and still finds a revoked token', async () => {
     const { user } = await makeUser(t);
     const trip = await makeTrip(t, user.id);
-    const own = await addresses.insertAddress({ userId: user.id, tripId: null, tokenHash: 'a', tokenEnc: 'x', createdAt: AT });
+    const own = await addresses.insertAddress({
+      userId: user.id,
+      tripId: null,
+      tokenHash: 'a',
+      tokenEnc: 'x',
+      createdAt: AT,
+    });
     await addresses.insertAddress({ userId: user.id, tripId: trip.id, tokenHash: 'b', tokenEnc: 'y', createdAt: AT });
 
     expect(await addresses.revokeLive(user.id, null, LATER)).toBe(1);
@@ -77,7 +83,13 @@ describe('MailIngestAddressesRepository', () => {
 
   it('notes when a mail came in', async () => {
     const { user } = await makeUser(t);
-    const id = await addresses.insertAddress({ userId: user.id, tripId: null, tokenHash: 'c', tokenEnc: 'z', createdAt: AT });
+    const id = await addresses.insertAddress({
+      userId: user.id,
+      tripId: null,
+      tokenHash: 'c',
+      tokenEnc: 'z',
+      createdAt: AT,
+    });
     await addresses.touchUsed(id, LATER);
     expect((await addresses.findById(id))?.last_used_at).toBe(LATER);
   });
diff --git a/server/tests/unit/db/repositories/MailIngestCandidates.repository.test.ts b/server/tests/unit/db/repositories/MailIngestCandidates.repository.test.ts
index 9765b591a..4c4802f97 100644
--- a/server/tests/unit/db/repositories/MailIngestCandidates.repository.test.ts
+++ b/server/tests/unit/db/repositories/MailIngestCandidates.repository.test.ts
@@ -203,7 +203,12 @@ describe('MailIngestCandidatesRepository: what it reads of the trips', () => {
 
   it('reads the person a mail is for', async () => {
     const { user } = await makeUser(t, { username: 'mia', email: 'mia@example.com' });
-    expect(await candidates.findPerson(user.id)).toEqual({ id: user.id, username: 'mia', email: 'mia@example.com', role: 'user' });
+    expect(await candidates.findPerson(user.id)).toEqual({
+      id: user.id,
+      username: 'mia',
+      email: 'mia@example.com',
+      role: 'user',
+    });
     expect(await candidates.findPerson(user.id + 100)).toBeNull();
   });
 
@@ -218,8 +223,9 @@ describe('MailIngestCandidatesRepository: what it reads of the trips', () => {
       external_id: 'ABC123|flight|2027-03-01|hnd-itm',
     });
 
-    expect(await candidates.tripHasExternal(trip.id, ['import', 'mail'], 'ABC123|flight|2027-03-01|hnd-itm')).toBe(true);
-    expect(await candidates.tripHasExternal(trip.id, ['import'], 'ABC123|flight|2027-03-01|hnd-itm')).toBe(false);
+    const key = 'ABC123|flight|2027-03-01|hnd-itm';
+    expect(await candidates.tripHasExternal(trip.id, ['import', 'mail'], key)).toBe(true);
+    expect(await candidates.tripHasExternal(trip.id, ['import'], key)).toBe(false);
 
     const none = { type: 'flight', startFrom: null, startTo: null, confirmation: null };
     expect(await candidates.tripHasSimilar(trip.id, none)).toBe(false);
diff --git a/server/tests/unit/db/repositories/MailIngestMessages.repository.test.ts b/server/tests/unit/db/repositories/MailIngestMessages.repository.test.ts
index d56a7ae11..549c83f49 100644
--- a/server/tests/unit/db/repositories/MailIngestMessages.repository.test.ts
+++ b/server/tests/unit/db/repositories/MailIngestMessages.repository.test.ts
@@ -125,7 +125,12 @@ describe('MailIngestMessagesRepository', () => {
     expect(await messages.claimDue(at('2026-11-01T12:00:00Z'), lease, 3)).toEqual([id]);
 
     await messages.finish(id!, DONE);
-    expect(await messages.findById(id!)).toMatchObject({ status: 'processed', ai_used: 1, from_verified: 1, lease_until: null });
+    expect(await messages.findById(id!)).toMatchObject({
+      status: 'processed',
+      ai_used: 1,
+      from_verified: 1,
+      lease_until: null,
+    });
   });
 
   it('purges a mail once it is done and nothing waits on it, and always after the hard limit', async () => {