Fix email typings

openslides_backend/action/actions/user/send_invitation_email.py

@@ -180,7 +180,6 @@ def update_instance(self, instance: dict[str, Any]) -> dict[str, Any]:
             return instance
 
         mail_data = self.get_data_from_meeting_or_organization(meeting_id)
-        from_email: str | Address
         if users_email_sender := mail_data.get("users_email_sender", "").strip():
             if any(
                 x in users_email_sender for x in EmailUtils.SENDER_NAME_FORBIDDEN_CHARS
@@ -192,8 +191,8 @@ def update_instance(self, instance: dict[str, Any]) -> dict[str, Any]:
                 )
                 result["type"] = EmailErrorType.SETTINGS_ERROR
                 return instance
-            from_email = Address(
-                users_email_sender, addr_spec=EmailSettings.default_from_email
+            from_email = str(
+                Address(users_email_sender, addr_spec=EmailSettings.default_from_email)
             )
         else:
             from_email = EmailSettings.default_from_email

openslides_backend/action/mixins/send_email_mixin.py

@@ -5,7 +5,6 @@
 from collections.abc import Generator
 from contextlib import contextmanager
 from datetime import datetime
-from email.headerregistry import Address
 from email.message import EmailMessage
 from email.utils import format_datetime, make_msgid
 from typing import Any
@@ -111,7 +110,7 @@ def get_mail_connection() -> Generator[smtplib.SMTP | smtplib.SMTP_SSL, None, No
     @staticmethod
     def send_email(
         client: smtplib.SMTP | smtplib.SMTP_SSL,
-        from_: str | Address,
+        from_: str,
         to: str | list[str],
         subject: str,
         content: str,
@@ -155,7 +154,7 @@ def send_email(
             )
 
         message["From"] = from_
-        message["To"] = to
+        message["To"] = to if isinstance(to, str) else ", ".join(to)
         message.preamble = "You will not see this in a MIME-aware mail reader.\n"
         message.add_header("Subject", subject)
         message.add_header("Date", format_datetime(datetime.now()))
@@ -168,7 +167,7 @@ def send_email(
     def send_email_safe(
         client: smtplib.SMTP | smtplib.SMTP_SSL,
         logger: Any,
-        from_: str | Address,
+        from_: str,
         to: str | list[str],
         subject: str,
         content: str,

tests/system/action/test_send_email_mixin.py

@@ -365,7 +365,7 @@ def test_sender_with_name(self) -> None:
         EmailSettings.connection_security = "NONE"
         EmailSettings.port = 25
 
-        sender = Address("Name of sender", addr_spec=self.sender)
+        sender = str(Address("Name of sender", addr_spec=self.sender))
         handler = AIOHandler()
         with AiosmtpdServerManager(handler):
             with EmailUtils.get_mail_connection() as mail_client: