Document activity mails are not working anymore

[mpgerstl]

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Steps to reproduce

1. Create a shared folder
2. Mark all checkboxes for mail notification for Activities in the Notification settings and choose send mail as soon as possible
3. Add document with different user account

Expected behaviour

When a file is uploaded, created or deleted a mail should be sent to notify users. The problem seems to exist since I updated to Nextcloud 30.

I have marked all checkboxes for mail in the Notification settings for the user and set send mail as soon as possible, but no notification mails are sent. Email settings are correct, as send_testmail is working fine as well as mails are sent to new created users. When a user is added to a new group, the notification mail is also working. It seems the problem is only related to document activities.

Actual behaviour

Mail for document activities are not sent

Server configuration

Web server: Apache 2.4.62 on Debian

Database: MariaDB 10.11.6

PHP version: 8.2

Nextcloud version: 30.0.1 and 30.0.2

List of activated apps

If you have access to your command line run e.g.:
sudo -u www-data php occ app:list
from within your Nextcloud installation folder

• activity: 3.0.0
• admin_audit: 1.20.0
• bruteforcesettings: 3.0.0
• checksum: 1.2.5
• cloud_federation_api: 1.13.0
• contactsinteraction: 1.11.0
• dav: 1.31.1
• federatedfilesharing: 1.20.0
• federation: 1.20.0
• files: 2.2.0
• files_antivirus: 5.6.0
• files_downloadactivity: 1.17.0
• files_downloadlimit: 3.0.0
• files_reminders: 1.3.0
• files_sharing: 1.22.0
• files_trashbin: 1.20.1
• logreader: 3.0.0
• lookup_server_connector: 1.18.0
• nextcloud_announcements: 2.0.0
• oauth2: 1.18.1
• password_policy: 2.0.0
• privacy: 2.0.0
• provisioning_api: 1.20.0
• related_resources: 1.5.0
• serverinfo: 2.0.0
• settings: 1.13.0
• theming: 2.5.0
• twofactor_backupcodes: 1.19.0
• updatenotification: 1.20.0
• user_ldap: 1.21.0
• viewer: 3.0.0
• workflowengine: 2.12.0

Nextcloud configuration

{
    "system": {
        "instanceid": "***REMOVED SENSITIVE VALUE***",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "trusted_domains": [
            "localhost"
        ],
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "trashbin_retention_obligation": "auto, 2",
        "overwrite.cli.url": "https:\/\/cloud.example.com\/",
        "dbtype": "mysql",
        "version": "30.0.2.2",
        "dbname": "***REMOVED SENSITIVE VALUE***",
        "dbhost": "***REMOVED SENSITIVE VALUE***",
        "dbport": "",
        "dbtableprefix": "oc_",
        "mysql.utf8mb4": true,
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "installed": true,
        "ldapIgnoreNamingRules": false,
        "ldapProviderFactory": "\\OCA\\User_LDAP\\LDAPProviderFactory",
        "mail_smtpmode": "sendmail",
        "mail_from_address": "***REMOVED SENSITIVE VALUE***",
        "mail_domain": "***REMOVED SENSITIVE VALUE***",
        "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpport": "25",
        "enable_previews": true,
        "memcache.local": "\\OC\\Memcache\\APCu",
        "maintenance": false,
        "theme": "",
        "loglevel": 0,
        "log_type": "file",
        "logfile": "\/var\/log\/nextcloud\/nextcloud.log",
        "logdateformat": "F d, Y H:i:s",
        "updater.release.channel": "stable",
        "default_language": "de_DE",
        "default_locale": "de",
        "knowledgebaseenabled": false,
        "skeletondirectory": "",
        "appstoreenabled": true,
        "trusted_proxies": "***REMOVED SENSITIVE VALUE***",
        "encryption.legacy_format_support": false,
        "encryption.key_storage_migrated": false,
        "activity_use_cached_mountpoints": false,
        "default_phone_region": "AT",
        "maintenance_window_start": 1,
        "mail_sendmailmode": "smtp",
        "app_install_overwrite": [
            "files_downloadactivity"
        ],
        "filelocking.enabled": false
    }
}

Browser

Browser name: Firefox

Browser version: 128.2.0esr

Operating system: Mac

Browser log