diff --git a/bot/data.go b/bot/data.go
index 327dc79..160cc72 100644
--- a/bot/data.go
+++ b/bot/data.go
@@ -1,22 +1,5 @@
 package bot
 
-import (
-	"strings"
-
-	"maunium.net/go/mautrix/id"
-)
-
-// account data keys
-const (
-	messagekey = "cc.etke.postmoogle.message"
-)
-
-// event keys
-const (
-	eventMessageIDkey = "cc.etke.postmoogle.messageID"
-	eventInReplyToKey = "cc.etke.postmoogle.inReplyTo"
-)
-
 var migrations = []string{}
 
 func (b *Bot) migrate() error {
@@ -68,31 +51,3 @@ func (b *Bot) syncRooms() error {
 
 	return nil
 }
-
-func (b *Bot) getThreadID(roomID id.RoomID, messageID string) id.EventID {
-	key := messagekey + "." + messageID
-	data := map[string]id.EventID{}
-	err := b.lp.GetClient().GetRoomAccountData(roomID, key, &data)
-	if err != nil {
-		if !strings.Contains(err.Error(), "M_NOT_FOUND") {
-			b.log.Error("cannot retrieve account data %s: %v", key, err)
-			return ""
-		}
-	}
-
-	return data["eventID"]
-}
-
-func (b *Bot) setThreadID(roomID id.RoomID, messageID string, eventID id.EventID) {
-	key := messagekey + "." + messageID
-	data := map[string]id.EventID{
-		"eventID": eventID,
-	}
-
-	err := b.lp.GetClient().SetRoomAccountData(roomID, key, data)
-	if err != nil {
-		if !strings.Contains(err.Error(), "M_NOT_FOUND") {
-			b.log.Error("cannot save account data %s: %v", key, err)
-		}
-	}
-}
diff --git a/bot/email.go b/bot/email.go
index e4cbd4a..a7c6349 100644
--- a/bot/email.go
+++ b/bot/email.go
@@ -12,6 +12,15 @@ import (
 	"gitlab.com/etke.cc/postmoogle/utils"
 )
 
+// account data key
+const acMessagePrefix = "cc.etke.postmoogle.message"
+
+// event keys
+const (
+	eventMessageIDkey = "cc.etke.postmoogle.messageID"
+	eventInReplyToKey = "cc.etke.postmoogle.inReplyTo"
+)
+
 func email2content(email *utils.Email, cfg roomsettings, threadID id.EventID) *event.Content {
 	var text strings.Builder
 	if !cfg.NoSender() {
@@ -115,3 +124,31 @@ func (b *Bot) sendFiles(ctx context.Context, roomID id.RoomID, files []*utils.Fi
 		}
 	}
 }
+
+func (b *Bot) getThreadID(roomID id.RoomID, messageID string) id.EventID {
+	key := acMessagePrefix + "." + messageID
+	data := map[string]id.EventID{}
+	err := b.lp.GetClient().GetRoomAccountData(roomID, key, &data)
+	if err != nil {
+		if !strings.Contains(err.Error(), "M_NOT_FOUND") {
+			b.log.Error("cannot retrieve account data %s: %v", key, err)
+			return ""
+		}
+	}
+
+	return data["eventID"]
+}
+
+func (b *Bot) setThreadID(roomID id.RoomID, messageID string, eventID id.EventID) {
+	key := acMessagePrefix + "." + messageID
+	data := map[string]id.EventID{
+		"eventID": eventID,
+	}
+
+	err := b.lp.GetClient().SetRoomAccountData(roomID, key, data)
+	if err != nil {
+		if !strings.Contains(err.Error(), "M_NOT_FOUND") {
+			b.log.Error("cannot save account data %s: %v", key, err)
+		}
+	}
+}
diff --git a/bot/settings_bot.go b/bot/settings_bot.go
index be057b4..dc44379 100644
--- a/bot/settings_bot.go
+++ b/bot/settings_bot.go
@@ -7,7 +7,7 @@ import (
 )
 
 // account data key
-const botsettingskey = "cc.etke.postmoogle.config"
+const acBotSettingsKey = "cc.etke.postmoogle.config"
 
 // bot options keys
 const (
@@ -48,26 +48,26 @@ func (b *Bot) migrateBotSettings(users []string) error {
 }
 
 func (b *Bot) getBotSettings() botsettings {
-	cfg := b.botcfg.Get(botsettingskey)
+	cfg := b.botcfg.Get(acBotSettingsKey)
 	if cfg != nil {
 		return cfg
 	}
 
 	config := botsettings{}
-	err := b.lp.GetClient().GetAccountData(botsettingskey, &config)
+	err := b.lp.GetClient().GetAccountData(acBotSettingsKey, &config)
 	if err != nil {
 		if strings.Contains(err.Error(), "M_NOT_FOUND") {
 			err = nil
 		}
 		b.log.Error("cannot get bot settings: %v", utils.UnwrapError(err))
 	} else {
-		b.botcfg.Set(botsettingskey, config)
+		b.botcfg.Set(acBotSettingsKey, config)
 	}
 
 	return config
 }
 
 func (b *Bot) setBotSettings(cfg botsettings) error {
-	b.botcfg.Set(botsettingskey, cfg)
-	return utils.UnwrapError(b.lp.GetClient().SetAccountData(botsettingskey, cfg))
+	b.botcfg.Set(acBotSettingsKey, cfg)
+	return utils.UnwrapError(b.lp.GetClient().SetAccountData(acBotSettingsKey, cfg))
 }
diff --git a/bot/settings_room.go b/bot/settings_room.go
index 9ab0037..f65c021 100644
--- a/bot/settings_room.go
+++ b/bot/settings_room.go
@@ -10,7 +10,7 @@ import (
 )
 
 // account data key
-const roomsettingskey = "cc.etke.postmoogle.settings"
+const acRoomSettingsKey = "cc.etke.postmoogle.settings"
 
 // option keys
 const (
@@ -73,7 +73,7 @@ func (s roomsettings) NoFiles() bool {
 // TODO: remove after migration
 func (b *Bot) migrateSettings(roomID id.RoomID) {
 	var config settingsOld
-	err := b.lp.GetClient().GetRoomAccountData(roomID, roomsettingskey, &config)
+	err := b.lp.GetClient().GetRoomAccountData(roomID, acRoomSettingsKey, &config)
 	if err != nil {
 		// any error = no need to migrate
 		return
@@ -100,7 +100,7 @@ func (b *Bot) getRoomSettings(roomID id.RoomID) (roomsettings, error) {
 	}
 
 	config := roomsettings{}
-	err := b.lp.GetClient().GetRoomAccountData(roomID, roomsettingskey, &config)
+	err := b.lp.GetClient().GetRoomAccountData(roomID, acRoomSettingsKey, &config)
 	if err != nil {
 		if strings.Contains(err.Error(), "M_NOT_FOUND") {
 			// Suppress `M_NOT_FOUND (HTTP 404): Room account data not found` errors.
@@ -117,5 +117,5 @@ func (b *Bot) getRoomSettings(roomID id.RoomID) (roomsettings, error) {
 
 func (b *Bot) setRoomSettings(roomID id.RoomID, cfg roomsettings) error {
 	b.cfg.Set(roomID.String(), cfg)
-	return utils.UnwrapError(b.lp.GetClient().SetRoomAccountData(roomID, roomsettingskey, cfg))
+	return utils.UnwrapError(b.lp.GetClient().SetRoomAccountData(roomID, acRoomSettingsKey, cfg))
 }