diff --git a/dmarcdb/dmarcdb.go b/dmarcdb/dmarcdb.go
index 6d073d3..44244fe 100644
--- a/dmarcdb/dmarcdb.go
+++ b/dmarcdb/dmarcdb.go
@@ -21,6 +21,7 @@ import (
 
 	"github.com/mjl-/mox/mlog"
 	"github.com/mjl-/mox/mox-"
+	"github.com/mjl-/mox/moxvar"
 )
 
 // Init opens the databases.
@@ -64,13 +65,13 @@ func Close() error {
 func openReportsDB(ctx context.Context, log mlog.Log) (*bstore.DB, error) {
 	p := mox.DataDirPath("dmarcrpt.db")
 	os.MkdirAll(filepath.Dir(p), 0770)
-	opts := bstore.Options{Timeout: 5 * time.Second, Perm: 0660, RegisterLogger: log.Logger}
+	opts := bstore.Options{Timeout: 5 * time.Second, Perm: 0660, RegisterLogger: moxvar.RegisterLogger(p, log.Logger)}
 	return bstore.Open(ctx, p, &opts, ReportsDBTypes...)
 }
 
 func openEvalDB(ctx context.Context, log mlog.Log) (*bstore.DB, error) {
 	p := mox.DataDirPath("dmarceval.db")
 	os.MkdirAll(filepath.Dir(p), 0770)
-	opts := bstore.Options{Timeout: 5 * time.Second, Perm: 0660, RegisterLogger: log.Logger}
+	opts := bstore.Options{Timeout: 5 * time.Second, Perm: 0660, RegisterLogger: moxvar.RegisterLogger(p, log.Logger)}
 	return bstore.Open(ctx, p, &opts, EvalDBTypes...)
 }
diff --git a/junk/filter.go b/junk/filter.go
index af2d9bf..9093367 100644
--- a/junk/filter.go
+++ b/junk/filter.go
@@ -26,6 +26,7 @@ import (
 
 	"github.com/mjl-/mox/message"
 	"github.com/mjl-/mox/mlog"
+	"github.com/mjl-/mox/moxvar"
 )
 
 var (
@@ -230,7 +231,7 @@ func newDB(ctx context.Context, log mlog.Log, path string) (db *bstore.DB, rerr
 		}
 	}()
 
-	opts := bstore.Options{Timeout: 5 * time.Second, Perm: 0660, RegisterLogger: log.Logger}
+	opts := bstore.Options{Timeout: 5 * time.Second, Perm: 0660, RegisterLogger: moxvar.RegisterLogger(path, log.Logger)}
 	db, err := bstore.Open(ctx, path, &opts, DBTypes...)
 	if err != nil {
 		return nil, fmt.Errorf("open new database: %w", err)
diff --git a/moxvar/reglog.go b/moxvar/reglog.go
new file mode 100644
index 0000000..1de0d34
--- /dev/null
+++ b/moxvar/reglog.go
@@ -0,0 +1,26 @@
+package moxvar
+
+import (
+	"errors"
+	"io/fs"
+	"log/slog"
+	"os"
+	"testing"
+)
+
+var skipRegisterLogging = testing.Testing()
+
+// RegisterLogger should be used as parameter to bstore.Options.RegisterLogger.
+//
+// RegisterLogger returns nil when running under test and the database file does
+// not yet exist to reduce lots of unhelpful logging, and returns logger log
+// otherwise.
+func RegisterLogger(path string, log *slog.Logger) *slog.Logger {
+	if !skipRegisterLogging {
+		return log
+	}
+	if _, err := os.Stat(path); err != nil && errors.Is(err, fs.ErrNotExist) {
+		return nil
+	}
+	return log
+}
diff --git a/mtastsdb/db.go b/mtastsdb/db.go
index 928d8d7..0c0a65b 100644
--- a/mtastsdb/db.go
+++ b/mtastsdb/db.go
@@ -24,6 +24,7 @@ import (
 	"github.com/mjl-/mox/dns"
 	"github.com/mjl-/mox/mlog"
 	"github.com/mjl-/mox/mox-"
+	"github.com/mjl-/mox/moxvar"
 	"github.com/mjl-/mox/mtasts"
 	"github.com/mjl-/mox/tlsrpt"
 )
@@ -75,7 +76,7 @@ func Init(refresher bool) error {
 
 	p := mox.DataDirPath("mtasts.db")
 	os.MkdirAll(filepath.Dir(p), 0770)
-	opts := bstore.Options{Timeout: 5 * time.Second, Perm: 0660, RegisterLogger: log.Logger}
+	opts := bstore.Options{Timeout: 5 * time.Second, Perm: 0660, RegisterLogger: moxvar.RegisterLogger(p, log.Logger)}
 	var err error
 	DB, err = bstore.Open(mox.Shutdown, p, &opts, DBTypes...)
 	if err != nil {
diff --git a/queue/queue.go b/queue/queue.go
index 2fabc25..e2e722e 100644
--- a/queue/queue.go
+++ b/queue/queue.go
@@ -32,6 +32,7 @@ import (
 	"github.com/mjl-/mox/mlog"
 	"github.com/mjl-/mox/mox-"
 	"github.com/mjl-/mox/moxio"
+	"github.com/mjl-/mox/moxvar"
 	"github.com/mjl-/mox/smtp"
 	"github.com/mjl-/mox/smtpclient"
 	"github.com/mjl-/mox/store"
@@ -351,7 +352,7 @@ func Init() error {
 
 	var err error
 	log := mlog.New("queue", nil)
-	opts := bstore.Options{Timeout: 5 * time.Second, Perm: 0660, RegisterLogger: log.Logger}
+	opts := bstore.Options{Timeout: 5 * time.Second, Perm: 0660, RegisterLogger: moxvar.RegisterLogger(qpath, log.Logger)}
 	DB, err = bstore.Open(mox.Shutdown, qpath, &opts, DBTypes...)
 	if err == nil {
 		err = DB.Read(mox.Shutdown, func(tx *bstore.Tx) error {
diff --git a/store/account.go b/store/account.go
index c0cd9c9..4958197 100644
--- a/store/account.go
+++ b/store/account.go
@@ -57,6 +57,7 @@ import (
 	"github.com/mjl-/mox/mlog"
 	"github.com/mjl-/mox/mox-"
 	"github.com/mjl-/mox/moxio"
+	"github.com/mjl-/mox/moxvar"
 	"github.com/mjl-/mox/publicsuffix"
 	"github.com/mjl-/mox/scram"
 	"github.com/mjl-/mox/smtp"
@@ -918,7 +919,7 @@ func OpenAccountDB(log mlog.Log, accountDir, accountName string) (a *Account, re
 		os.MkdirAll(accountDir, 0770)
 	}
 
-	opts := bstore.Options{Timeout: 5 * time.Second, Perm: 0660, RegisterLogger: log.Logger}
+	opts := bstore.Options{Timeout: 5 * time.Second, Perm: 0660, RegisterLogger: moxvar.RegisterLogger(dbpath, log.Logger)}
 	db, err := bstore.Open(context.TODO(), dbpath, &opts, DBTypes...)
 	if err != nil {
 		return nil, err
diff --git a/store/tlspubkey.go b/store/tlspubkey.go
index 3d66183..146f7ff 100644
--- a/store/tlspubkey.go
+++ b/store/tlspubkey.go
@@ -18,6 +18,7 @@ import (
 
 	"github.com/mjl-/mox/mlog"
 	"github.com/mjl-/mox/mox-"
+	"github.com/mjl-/mox/moxvar"
 	"github.com/mjl-/mox/smtp"
 )
 
@@ -54,7 +55,7 @@ func Init(ctx context.Context) error {
 	pkglog := mlog.New("store", nil)
 	p := mox.DataDirPath("auth.db")
 	os.MkdirAll(filepath.Dir(p), 0770)
-	opts := bstore.Options{Timeout: 5 * time.Second, Perm: 0660, RegisterLogger: pkglog.Logger}
+	opts := bstore.Options{Timeout: 5 * time.Second, Perm: 0660, RegisterLogger: moxvar.RegisterLogger(p, pkglog.Logger)}
 	var err error
 	AuthDB, err = bstore.Open(ctx, p, &opts, AuthDBTypes...)
 	return err
diff --git a/tlsrptdb/db.go b/tlsrptdb/db.go
index b2e22c9..6d25454 100644
--- a/tlsrptdb/db.go
+++ b/tlsrptdb/db.go
@@ -11,6 +11,7 @@ import (
 
 	"github.com/mjl-/mox/mlog"
 	"github.com/mjl-/mox/mox-"
+	"github.com/mjl-/mox/moxvar"
 )
 
 var (
@@ -45,14 +46,14 @@ func Init() error {
 func openReportDB(ctx context.Context, log mlog.Log) (*bstore.DB, error) {
 	p := mox.DataDirPath("tlsrpt.db")
 	os.MkdirAll(filepath.Dir(p), 0770)
-	opts := bstore.Options{Timeout: 5 * time.Second, Perm: 0660, RegisterLogger: log.Logger}
+	opts := bstore.Options{Timeout: 5 * time.Second, Perm: 0660, RegisterLogger: moxvar.RegisterLogger(p, log.Logger)}
 	return bstore.Open(ctx, p, &opts, ReportDBTypes...)
 }
 
 func openResultDB(ctx context.Context, log mlog.Log) (*bstore.DB, error) {
 	p := mox.DataDirPath("tlsrptresult.db")
 	os.MkdirAll(filepath.Dir(p), 0770)
-	opts := bstore.Options{Timeout: 5 * time.Second, Perm: 0660, RegisterLogger: log.Logger}
+	opts := bstore.Options{Timeout: 5 * time.Second, Perm: 0660, RegisterLogger: moxvar.RegisterLogger(p, log.Logger)}
 	return bstore.Open(ctx, p, &opts, ResultDBTypes...)
 }