diff --git a/back/interfaces/mail/attrs.interface.ts b/back/interfaces/mail/attrs.interface.ts
index ad0f54e..5841393 100644
--- a/back/interfaces/mail/attrs.interface.ts
+++ b/back/interfaces/mail/attrs.interface.ts
@@ -43,4 +43,5 @@ export interface AttrsWithEnvelope {
     envelope: Envelope;
     /** The RFC822 message size (only set if requested with fetch()). */
     size?: number | undefined;
+    modseq?: number;
 }
diff --git a/back/mails/imap/Box.ts b/back/mails/imap/Box.ts
index 6f97d79..01f6d14 100644
--- a/back/mails/imap/Box.ts
+++ b/back/mails/imap/Box.ts
@@ -1,6 +1,6 @@
 import Imap, { ImapMessageAttributes, MailBoxes } from "imap";
 import { getMailbox, updateMailbox } from "../../db/imap/imap";
-import { Attrs } from "../../interfaces/mail/attrs.interface";
+import { Attrs, AttrsWithEnvelope } from "../../interfaces/mail/attrs.interface";
 import logger from "../../system/Logger";
 import RegisterMessageInApp from "../saveMessage";
 import { saveMessage } from "../storeMessage";
@@ -31,7 +31,7 @@ export default class Box {
 
     sync(savedUid, currentUid) {
         const promises: Promise<unknown>[] = [];
-        const mails: ImapMessageAttributes[] = [];
+        const mails: Attrs[] = [];
         logger.log(`Syncing from ${savedUid} to ${currentUid} uid`);
         const f = this.imap.seq.fetch(`${savedUid}:${currentUid}`, {
         // const f = this.imap.seq.fetch(`${savedUid}:${currentUid}`, {
@@ -40,7 +40,7 @@ export default class Box {
         });
 
         f.on("message", (msg, seqno) => {
-            msg.once("attributes", (attrs: Attrs) => {
+            msg.once("attributes", (attrs: AttrsWithEnvelope) => {
                 console.log(attrs.envelope)
                 mails.push(attrs);
                 promises.push(saveMessage(attrs, this.id, this.imap));
@@ -58,7 +58,7 @@ export default class Box {
                 for (let j = i; j < (i + step && promises.length); j++) {
                     await new Promise((resolve, reject) => {
                         promises[j]
-                            .then(async (res) => {
+                            .then(async (res: number) => {
                                 const register = new RegisterMessageInApp(res, mails[j], this.id);
                                 await register.save();
                                 resolve("");
diff --git a/back/mails/storeMessage.ts b/back/mails/storeMessage.ts
index 4135c5d..6d02af3 100644
--- a/back/mails/storeMessage.ts
+++ b/back/mails/storeMessage.ts
@@ -1,6 +1,7 @@
 import { getAddresseId } from "../db/mail";
 import {simpleParser} from "mailparser";
 import moment from "moment";
+import Imap from "imap";
 import {
     registerMessage,
     registerMailbox_message,
@@ -13,8 +14,9 @@ import {
 
 import { getFieldId } from "../db/mail";
 import logger from "../system/Logger";
+import { AttrsWithEnvelope } from "../interfaces/mail/attrs.interface";
 
-export function saveMessage(attrs, mailboxId, imap) {
+export function saveMessage(attrs: AttrsWithEnvelope, mailboxId: number, imap: Imap): Promise<number> {
     const envelope = attrs.envelope;
     const ts = moment(new Date(envelope.date).getTime()).format("YYYY-MM-DD HH:mm:ss");
     const rfc822size = attrs.size;
@@ -26,7 +28,7 @@ export function saveMessage(attrs, mailboxId, imap) {
                 const isSeen = attrs.flags.includes("\\Seen") ? 1 : 0; // todo verify
                 const deleted = attrs.flags.includes("\\Deleted") ? 1 : 0; // todo verify
 
-                registerMailbox_message(mailboxId, attrs.uid, messageId, attrs.modseq, isSeen, deleted);
+                registerMailbox_message(mailboxId, attrs.uid, messageId, attrs?.modseq, isSeen, deleted);
                 const f = imap.fetch(attrs.uid, { bodies: "" });
                 let buffer = "";
 
diff --git a/back/test/test-utils/test-attrsUtils.ts b/back/test/test-utils/test-attrsUtils.ts
index 514aa90..524da5f 100644
--- a/back/test/test-utils/test-attrsUtils.ts
+++ b/back/test/test-utils/test-attrsUtils.ts
@@ -36,9 +36,6 @@ export function generateAttrs(options: Options): AttrsWithEnvelope {
         "flags": options.flags ?? [],
         "uid": options.uid ?? randomInt(3),
         "modseq": options.modseq ?? randomInt(7),
-        "x-gm-labels": ["\\Inbox"],
-        "x-gm-msgid": "1760991478422670209",
-        "x-gm-thrid": "1760991478422670209",
     };
     return attrs;
 }
diff --git a/back/tsconfig.json b/back/tsconfig.json
index b314d1c..bbbc82f 100644
--- a/back/tsconfig.json
+++ b/back/tsconfig.json
@@ -8,10 +8,5 @@
         "skipLibCheck": true,
         "resolveJsonModule": true,
         "types": ["node", "jest"],
-        "paths": {
-            "*": ["node_modules/*", "src/types/*"]
-        }
     },
-    "include": ["src/**/*.ts"],
-    "exclude": ["node_modules"]
 }