diff --git a/lnbits/extensions/smtp/crud.py b/lnbits/extensions/smtp/crud.py
index e5ab1d1f7..2eee4c3d9 100644
--- a/lnbits/extensions/smtp/crud.py
+++ b/lnbits/extensions/smtp/crud.py
@@ -1,8 +1,6 @@
 from http import HTTPStatus
 from typing import List, Optional, Union
 
-from starlette.exceptions import HTTPException
-
 from lnbits.helpers import urlsafe_short_hash
 
 from . import db
diff --git a/lnbits/extensions/smtp/models.py b/lnbits/extensions/smtp/models.py
index 0b3138e9a..e2f3fc13f 100644
--- a/lnbits/extensions/smtp/models.py
+++ b/lnbits/extensions/smtp/models.py
@@ -1,18 +1,18 @@
-from fastapi.params import Query
-from pydantic.main import BaseModel
+from fastapi import Query
+from pydantic import BaseModel
 
 
 class CreateEmailaddress(BaseModel):
-    wallet: str = Query(...)  # type: ignore
-    email: str = Query(...)  # type: ignore
-    testemail: str = Query(...)  # type: ignore
-    smtp_server: str = Query(...)  # type: ignore
-    smtp_user: str = Query(...)  # type: ignore
-    smtp_password: str = Query(...)  # type: ignore
-    smtp_port: str = Query(...)  # type: ignore
-    description: str = Query(...)  # type: ignore
+    wallet: str = Query(...)
+    email: str = Query(...)
+    testemail: str = Query(...)
+    smtp_server: str = Query(...)
+    smtp_user: str = Query(...)
+    smtp_password: str = Query(...)
+    smtp_port: str = Query(...)
+    description: str = Query(...)
     anonymize: bool
-    cost: int = Query(..., ge=0)  # type: ignore
+    cost: int = Query(..., ge=0)
 
 
 class Emailaddresses(BaseModel):
@@ -30,10 +30,10 @@ class Emailaddresses(BaseModel):
 
 
 class CreateEmail(BaseModel):
-    emailaddress_id: str = Query(...)  # type: ignore
-    subject: str = Query(...)  # type: ignore
-    receiver: str = Query(...)  # type: ignore
-    message: str = Query(...)  # type: ignore
+    emailaddress_id: str = Query(...)
+    subject: str = Query(...)
+    receiver: str = Query(...)
+    message: str = Query(...)
 
 
 class Emails(BaseModel):
diff --git a/lnbits/extensions/smtp/smtp.py b/lnbits/extensions/smtp/smtp.py
index b9a2dce38..a8830254d 100644
--- a/lnbits/extensions/smtp/smtp.py
+++ b/lnbits/extensions/smtp/smtp.py
@@ -1,9 +1,9 @@
-import os
 import re
 import socket
-import sys
+import time
 from email.mime.multipart import MIMEMultipart
 from email.mime.text import MIMEText
+from email.utils import formatdate
 from http import HTTPStatus
 from smtplib import SMTP_SSL as SMTP
 
@@ -25,7 +25,12 @@ async def send_mail(emailaddress, email):
     valid_email(emailaddress.email)
     valid_email(email.receiver)
 
+    ts = time.time()
+    date = formatdate(ts, True)
+
     msg = MIMEMultipart("alternative")
+    msg = MIMEMultipart("alternative")
+    msg["Date"] = date
     msg["Subject"] = email.subject
     msg["From"] = emailaddress.email
     msg["To"] = email.receiver
diff --git a/lnbits/extensions/smtp/tasks.py b/lnbits/extensions/smtp/tasks.py
index ed569daeb..9c544473f 100644
--- a/lnbits/extensions/smtp/tasks.py
+++ b/lnbits/extensions/smtp/tasks.py
@@ -1,20 +1,11 @@
 import asyncio
-from http import HTTPStatus
 
-import httpx
 from loguru import logger
-from starlette.exceptions import HTTPException
 
 from lnbits.core.models import Payment
 from lnbits.tasks import register_invoice_listener
 
-from .crud import (
-    delete_email,
-    get_email,
-    get_emailaddress,
-    get_emailaddress_by_email,
-    set_email_paid,
-)
+from .crud import get_email, get_emailaddress, set_email_paid
 from .smtp import send_mail
 
 
@@ -27,8 +18,7 @@ async def wait_for_paid_invoices():
 
 
 async def on_invoice_paid(payment: Payment) -> None:
-    if not payment.extra or "smtp" != payment.extra.get("tag"):
-        # not an lnurlp invoice
+    if payment.extra.get("tag") != "smtp":
         return
 
     email = await get_email(payment.checking_id)
diff --git a/lnbits/extensions/smtp/views.py b/lnbits/extensions/smtp/views.py
index 1ba53341d..df208a77b 100644
--- a/lnbits/extensions/smtp/views.py
+++ b/lnbits/extensions/smtp/views.py
@@ -1,9 +1,7 @@
 from http import HTTPStatus
 
-from fastapi import Request
-from fastapi.params import Depends
+from fastapi import Depends, HTTPException, Request
 from fastapi.templating import Jinja2Templates
-from starlette.exceptions import HTTPException
 from starlette.responses import HTMLResponse
 
 from lnbits.core.models import User
@@ -16,9 +14,7 @@ templates = Jinja2Templates(directory="templates")
 
 
 @smtp_ext.get("/", response_class=HTMLResponse)
-async def index(
-    request: Request, user: User = Depends(check_user_exists)  # type: ignore
-):
+async def index(request: Request, user: User = Depends(check_user_exists)):
     return smtp_renderer().TemplateResponse(
         "smtp/index.html", {"request": request, "user": user.dict()}
     )
diff --git a/lnbits/extensions/smtp/views_api.py b/lnbits/extensions/smtp/views_api.py
index 5001c1a5a..08a05ef3d 100644
--- a/lnbits/extensions/smtp/views_api.py
+++ b/lnbits/extensions/smtp/views_api.py
@@ -1,8 +1,6 @@
 from http import HTTPStatus
 
-from fastapi import Query
-from fastapi.params import Depends
-from starlette.exceptions import HTTPException
+from fastapi import Depends, HTTPException, Query
 
 from lnbits.core.crud import get_user
 from lnbits.core.services import check_transaction_status, create_invoice
@@ -17,18 +15,17 @@ from .crud import (
     delete_emailaddress,
     get_email,
     get_emailaddress,
-    get_emailaddress_by_email,
     get_emailaddresses,
     get_emails,
     update_emailaddress,
 )
-from .smtp import send_mail, valid_email
+from .smtp import valid_email
 
 
 ## EMAILS
 @smtp_ext.get("/api/v1/email")
 async def api_email(
-    g: WalletTypeInfo = Depends(get_key_type), all_wallets: bool = Query(False)  # type: ignore
+    g: WalletTypeInfo = Depends(get_key_type), all_wallets: bool = Query(False)
 ):
     wallet_ids = [g.wallet.id]
     if all_wallets:
@@ -98,9 +95,7 @@ async def api_smtp_make_email(emailaddress_id, data: CreateEmail):
 
 
 @smtp_ext.delete("/api/v1/email/{email_id}")
-async def api_email_delete(
-    email_id, g: WalletTypeInfo = Depends(get_key_type)  # type: ignore
-):
+async def api_email_delete(email_id, g: WalletTypeInfo = Depends(get_key_type)):
     email = await get_email(email_id)
 
     if not email:
@@ -118,8 +113,8 @@ async def api_email_delete(
 ## EMAILADDRESSES
 @smtp_ext.get("/api/v1/emailaddress")
 async def api_emailaddresses(
-    g: WalletTypeInfo = Depends(get_key_type),  # type: ignore
-    all_wallets: bool = Query(False),  # type: ignore
+    g: WalletTypeInfo = Depends(get_key_type),
+    all_wallets: bool = Query(False),
 ):
     wallet_ids = [g.wallet.id]
     if all_wallets:
@@ -136,7 +131,7 @@ async def api_emailaddresses(
 async def api_emailaddress_create(
     data: CreateEmailaddress,
     emailaddress_id=None,
-    g: WalletTypeInfo = Depends(get_key_type),  # type: ignore
+    g: WalletTypeInfo = Depends(get_key_type),
 ):
     if emailaddress_id:
         emailaddress = await get_emailaddress(emailaddress_id)
@@ -158,7 +153,7 @@ async def api_emailaddress_create(
 
 @smtp_ext.delete("/api/v1/emailaddress/{emailaddress_id}")
 async def api_emailaddress_delete(
-    emailaddress_id, g: WalletTypeInfo = Depends(get_key_type)  # type: ignore
+    emailaddress_id, g: WalletTypeInfo = Depends(get_key_type)
 ):
     emailaddress = await get_emailaddress(emailaddress_id)
 
diff --git a/package-lock.json b/package-lock.json
deleted file mode 100644
index f2ff24bdd..000000000
--- a/package-lock.json
+++ /dev/null
@@ -1,32 +0,0 @@
-{
-  "name": "lnbits-legend",
-  "lockfileVersion": 2,
-  "requires": true,
-  "packages": {
-    "": {
-      "devDependencies": {
-        "prettier": "2.1.1"
-      }
-    },
-    "node_modules/prettier": {
-      "version": "2.1.1",
-      "resolved": "https://registry.npmjs.org/prettier/-/prettier-2.1.1.tgz",
-      "integrity": "sha512-9bY+5ZWCfqj3ghYBLxApy2zf6m+NJo5GzmLTpr9FsApsfjriNnS2dahWReHMi7qNPhhHl9SYHJs2cHZLgexNIw==",
-      "dev": true,
-      "bin": {
-        "prettier": "bin-prettier.js"
-      },
-      "engines": {
-        "node": ">=10.13.0"
-      }
-    }
-  },
-  "dependencies": {
-    "prettier": {
-      "version": "2.1.1",
-      "resolved": "https://registry.npmjs.org/prettier/-/prettier-2.1.1.tgz",
-      "integrity": "sha512-9bY+5ZWCfqj3ghYBLxApy2zf6m+NJo5GzmLTpr9FsApsfjriNnS2dahWReHMi7qNPhhHl9SYHJs2cHZLgexNIw==",
-      "dev": true
-    }
-  }
-}