How does work the mail notification application

Hello!

I am a little lost on how the notification application does work on nextcloud.
I have a group of users (GROUP1). All users in the group have all notifications by email enabled.
I created a folder and shared it with GROUP1. All users of the group receive a mail notification ( :grinning:)
I created a test file (test.md) => all users in the group received a notification ( :grinning:)
I uploaded a pdf file (test.pdf) => nobody received a notification (same for a word document). ( :slightly_frowning_face: )
I do not see any errors in logfiles.
Did I miss something?

  • Nextcloud Server version : Nextcloud Hub 9 (30.0.6)
  • Operating system and version : Debian 12.9
  • Web server and version: Apache 2.4.62
  • PHP version: 8.2.27

thx in advance!

After a little more troubleshooting, it appears that no notification is sent when I add a new file (add, not create) in the shared folder but if I overwritte the new file (even with the same one), in that case a notification is sent. So the problem is when adding new file. Is there anything that can be configured to get notifications for new added files?