Swift_TransportException: Expected response code 354 but got code "554"

capote · December 27, 2022, 7:09pm

NethServer Version: 7.9
Module: Nextcloud 25.02

Hello, within the Nextcloud log I found two related errors:

Swift_TransportException: Expected response code 354 but got code "554", with message "554 5.5.1 Error: no valid recipients"

Failed sending activity email to user '7032DCF8-E454-4842-B7E9-DE5D08EBB661'.

It seems that some Nexcloud process wants to send a mail to a non-existent user.

Because in my Nextcloud user list there is no user with this ID.

How can I find out which process is trying to send a mail to this user. Somewhere this must be defined.

The problem occurs only with NC 25.x. I did not make any administrative or other changes to the system. The system runs since 2 years (?) practically unchanged.

Best regards, Marko

mrmarkuz · December 27, 2022, 9:58pm

Maybe there’s an old/disabled user? Did you check the user list by using occ on command line?

occ user:list

Delete the old user by UID:

occ user:delete <UID>

It’s an activity notification that’s enabled in the Nextcloud settings:

dnutan · December 27, 2022, 10:04pm

Possibly related:

github.com/nextcloud/activity

NC25 - failed sending activity email messages for deleted (ldap) users spams log

opened 01:28PM - 08 Nov 22 UTC

jpkop

bug needs info 1. to develop feature: email

Hello. we face the following issue: Some former users were deleted via ldap. …It seems that there were pending activity mails for these users in the outbox that can not be delivered. Each time the cron job runs we get the log entries down below. We first saw this problems after upgrading to 25.0.1 (from 24.0.5). Is there a way to manually purge this outbox or solve the issue otherwise? Thanks in advance. ### Server configuration **Operating system**: Ubuntu 20.04.5 **Web server:** nginx **Database:** postgresql **PHP version:** 8.1.12 **Nextcloud version:** 25.0.1.1 **Where did you install Nextcloud from:** docker-compose file ``` version: '3' services: db: image: postgres:13 restart: always logging: driver: "json-file" options: max-file: "10" max-size: "10m" volumes: - ./db:/var/lib/postgresql/data env_file: - db.env redis: image: redis command: redis-server --requirepass *** logging: driver: "json-file" options: max-file: "10" max-size: "10m" restart: always app: container_name: app-server image: nextcloud:25.0.1-fpm restart: always logging: driver: "json-file" options: max-file: "10" max-size: "10m" expose: - '80' - '9000' volumes: - ./nextcloud:/var/www/html - ./www.overloaded.conf:/usr/local/etc/php-fpm.d/www.overloaded.conf - ./nextcloud.ini:/usr/local/etc/php/conf.d/nextcloud.ini environment: - POSTGRES_HOST=db - REDIS_HOST=redis - REDIS_HOST_PASSWORD=*** env_file: - db.env depends_on: - db - redis cron: image: nextcloud:25.0.1-fpm restart: always logging: driver: "json-file" options: max-file: "10" max-size: "10m" volumes: - ./nextcloud:/var/www/html entrypoint: /cron.sh depends_on: - db - redis - app onlyoffice-document-server: container_name: onlyoffice-document-server image: onlyoffice/documentserver:7.1 restart: always logging: driver: "json-file" options: max-file: "10" max-size: "10m" expose: - '80' - '443' volumes: - ./document_data:/var/www/onlyoffice/Data - ./document_log:/var/log/onlyoffice nginx: container_name: nginx-server image: nginx:1.21 restart: always logging: driver: "json-file" options: max-file: "10" max-size: "10m" ports: - 80:80 - 443:443 volumes: - ./nginx.conf:/etc/nginx/nginx.conf - ./cloud-cert.pem:/etc/nginx/cloud-cert.pem - ./private.pem:/etc/nginx/private.pem - ./nextcloud:/var/www/html depends_on: - db - redis - app volumes: db: nextcloud: document_data: document_log: app_data: ``` **Signing status:** Not sure what this means **Nextcloud configuration:** ``` { "system": { "minimum.supported.desktop.version": "3.4.1", "memcache.local": "\\OC\\Memcache\\APCu", "apps_paths": [ { "path": "\/var\/www\/html\/apps", "url": "\/apps", "writable": false }, { "path": "\/var\/www\/html\/custom_apps", "url": "\/custom_apps", "writable": true } ], "memcache.distributed": "\\OC\\Memcache\\Redis", "memcache.locking": "\\OC\\Memcache\\Redis", "redis": { "host": "***REMOVED SENSITIVE VALUE***", "password": "***REMOVED SENSITIVE VALUE***", "port": 6379 }, "instanceid": "***REMOVED SENSITIVE VALUE***", "passwordsalt": "***REMOVED SENSITIVE VALUE***", "secret": "***REMOVED SENSITIVE VALUE***", "trusted_domains": [ "***REMOVED SENSITIVE VALUE***", "nginx-server" ], "default_language": "de", "default_locale": "de", "default_phone_region": "de", "knowledgebaseenabled": true, "datadirectory": "***REMOVED SENSITIVE VALUE***", "dbtype": "pgsql", "version": "25.0.1.1", "overwrite.cli.url": "***REMOVED SENSITIVE VALUE***", "overwritehost": "***REMOVED SENSITIVE VALUE***", "overwriteprotocol": "https", "dbname": "***REMOVED SENSITIVE VALUE***", "dbhost": "***REMOVED SENSITIVE VALUE***", "dbport": "", "dbtableprefix": "oc_", "dbuser": "***REMOVED SENSITIVE VALUE***", "dbpassword": "***REMOVED SENSITIVE VALUE***", "installed": true, "onlyoffice": { "DocumentServerUrl": "\/ds-vpath\/", "DocumentServerInternalUrl": "http:\/\/onlyoffice-document-server\/", "StorageUrl": "http:\/\/nginx-server\/", "verify_peer_off": true }, "allow_local_remote_servers": "true", "ldapProviderFactory": "OCA\\User_LDAP\\LDAPProviderFactory", "mail_from_address": "***REMOVED SENSITIVE VALUE***", "mail_smtpmode": "smtp", "mail_sendmailmode": "smtp", "mail_domain": "***REMOVED SENSITIVE VALUE***", "mail_smtphost": "***REMOVED SENSITIVE VALUE***", "mail_smtpport": "25", "maintenance": false, "maintenance_window_start": 1, "mail_smtpauthtype": "PLAIN", "mail_smtpauth": 1, "mail_smtpname": "***REMOVED SENSITIVE VALUE***", "mail_smtppassword": "***REMOVED SENSITIVE VALUE***", "mail_smtpsecure": "tls", "auto_logout": false, "loglevel": 2, "app_install_overwrite": [ "spreed", "files_texteditor", "tasks", "quota_warning", "forms", "files_mindmap", "files_bpm", "drawio" ] } } ``` ### Logs #### Nextcloud log (data/nextcloud.log) ``` [activity] Warnung: Failed sending activity email to user '3ef6d5ba-f34d-103a-9a21-73d5657b9a5b'. at 2022-11-08T13:10:02+00:00 [activity] Fehler: Swift_TransportException: Expected response code 354 but got code "554", with message "554 5.5.1 Error: no valid recipients" at <<closure>> 0. /var/www/html/3rdparty/swiftmailer/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php line 344 Swift_Transport_AbstractSmtpTransport->assertResponseCode("554 5.5.1 Error ... n", [354]) 1. /var/www/html/3rdparty/swiftmailer/swiftmailer/lib/classes/Swift/Transport/EsmtpTransport.php line 305 Swift_Transport_AbstractSmtpTransport->executeCommand("DATA\r\n", [354], ["user@user@domain.tld"], false, null) 2. /var/www/html/3rdparty/swiftmailer/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php line 392 Swift_Transport_EsmtpTransport->executeCommand("DATA\r\n", [354], ["user@user@domain.tld"]) 3. /var/www/html/3rdparty/swiftmailer/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php line 499 Swift_Transport_AbstractSmtpTransport->doDataCommand(["user@domain.tld"]) 4. /var/www/html/3rdparty/swiftmailer/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php line 518 Swift_Transport_AbstractSmtpTransport->doMailTransaction(Swift_Message {}, "cloudmail@domain.tld", ["user@domain.tld"], ["user@domain.tld"]) 5. /var/www/html/3rdparty/swiftmailer/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php line 206 Swift_Transport_AbstractSmtpTransport->sendTo(Swift_Message {}, "cloudmail@domain.tld", ["3ef6d5ba-f34d-103a-9a21-73d5657b9a5b"], ["user@domain.tld"]) 6. /var/www/html/3rdparty/swiftmailer/swiftmailer/lib/classes/Swift/Mailer.php line 71 Swift_Transport_AbstractSmtpTransport->send(Swift_Message {}, ["user@domain.tld"]) 7. /var/www/html/lib/private/Mail/Mailer.php line 191 Swift_Mailer->send(Swift_Message {}, ["user@domain.tld"]) 8. /var/www/html/apps/activity/lib/MailQueueHandler.php line 415 OC\Mail\Mailer->send(OC\Mail\Message {}) 9. /var/www/html/apps/activity/lib/MailQueueHandler.php line 165 OCA\Activity\MailQueueHandler->sendEmailToUser("3ef6d5ba-f34d-103a-9a21-73d5657b9a5b", "user@domain.tld", "de", "Europe/Berlin", 1667913000) 10. /var/www/html/apps/activity/lib/BackgroundJob/EmailNotification.php line 61 OCA\Activity\MailQueueHandler->sendEmails(500, 1667913000) 11. /var/www/html/lib/private/BackgroundJob/Job.php line 54 OCA\Activity\BackgroundJob\EmailNotification->run(null) 12. /var/www/html/lib/private/BackgroundJob/TimedJob.php line 60 OC\BackgroundJob\Job->execute(OC\BackgroundJob\JobList {}, OC\Log {}) 13. /var/www/html/cron.php line 152 OC\BackgroundJob\TimedJob->execute(OC\BackgroundJob\JobList {}, OC\Log {}) at 2022-11-08T13:10:02+00:00 [PHP] Fehler: Error: strtolower(): Passing null to parameter #1 ($string) of type string is deprecated at /var/www/html/3rdparty/swiftmailer/swiftmailer/lib/classes/Swift/Transport/EsmtpTransport.php#144 at <<closure>> 0. <<closure>> OC\Log\ErrorHandler::onError(8192, "strtolower(): P ... d", "/var/www/html/3 ... p", 144) 1. /var/www/html/3rdparty/swiftmailer/swiftmailer/lib/classes/Swift/Transport/EsmtpTransport.php line 144 strtolower(null) 2. /var/www/html/3rdparty/swiftmailer/swiftmailer/lib/classes/Swift/SmtpTransport.php line 43 Swift_Transport_EsmtpTransport->setEncryption(null) 3. /var/www/html/lib/private/Mail/Mailer.php line 267 Swift_SmtpTransport->__construct() 4. /var/www/html/lib/private/Mail/Mailer.php line 254 OC\Mail\Mailer->getSmtpInstance() 5. /var/www/html/lib/private/Mail/Mailer.php line 180 OC\Mail\Mailer->getInstance() 6. /var/www/html/apps/activity/lib/MailQueueHandler.php line 415 OC\Mail\Mailer->send(OC\Mail\Message {}) 7. /var/www/html/apps/activity/lib/MailQueueHandler.php line 165 OCA\Activity\MailQueueHandler->sendEmailToUser("3ef6d5ba-f34d-103a-9a21-73d5657b9a5b", "user@domain.tld, "de", "Europe/Berlin", 1667913899) 8. /var/www/html/apps/activity/lib/BackgroundJob/EmailNotification.php line 61 OCA\Activity\MailQueueHandler->sendEmails(500, 1667913899) 9. /var/www/html/lib/private/BackgroundJob/Job.php line 54 OCA\Activity\BackgroundJob\EmailNotification->run(null) 10. /var/www/html/lib/private/BackgroundJob/TimedJob.php line 60 OC\BackgroundJob\Job->execute(OC\BackgroundJob\JobList {}, OC\Log {}) 11. /var/www/html/cron.php line 152 OC\BackgroundJob\TimedJob->execute(OC\BackgroundJob\JobList {}, OC\Log {}) at 2022-11-08T13:25:01+00:00 ```

github.com/nextcloud/activity

Unlimited mail send retries with non-existent / deleted mail address

opened 11:13AM - 17 Dec 20 UTC

alx-tuilmenau

### Steps to reproduce 1. Add an account with a non-existent mail address (here the mail address comes from an LDAP Source, but may also accour with deleted mail adresses on normal accounts; mail address is in our domain, see mailserver note below) 2. Create some activity e.g. share something with this account Here I have to add, nextcloud uses directly our domain mailserver via smtp without a local MTA. This mailserver will verify RCPT and return an error on non-existent RCPT mail addresses inside our domain directly (55x on RCPT) . ### Expected behaviour In the cronjob, after failing sending the mail, retry a limited number of times, e.g. 3. If it's still failing again, log a warning and do not try again sending mails / remove entries from mq. ### Actual behaviour Cronjob tries to send a new mail on every call (15 Minutes), filling up the mail server log with error messages. Notification is never removed from activity_mq. ### Server configuration **Operating system**: Debian 10 **Web server:** Apache / php_fpm **Database:** MariaDB **PHP version:** 7.3.22 **Nextcloud version:** (see Nextcloud admin page) 19.0.6 **Where did you install Nextcloud from:** Upgrade **List of activated apps:** Activity 2.12.1, LDAP 1.9.1 **Are you using an external user-backend, if yes which one:** LDAP ### Client configuration **Browser:** Firefox **Operating system:** Win 10 ### Logs no error messages in Apache/Browser/Nextcloud logs. But mailserver log fills up with many tries to send to an non-existent mailadress.

queued messages might be in activity_mq table.

capote · December 27, 2022, 10:42pm

I did it: no matching result

It’s an activity notification that’s enabled in the Nextcloud settings:

I didn’t mean who creates the log entry, but who or what tries to send the mail to the non-existent user.

Thank you, Markus

capote · December 27, 2022, 11:00pm

github.com/nextcloud/activity

NC25 - failed sending activity email messages for deleted (ldap) users spams log

opened 01:28PM - 08 Nov 22 UTC

jpkop

bug needs info 1. to develop feature: email

Hello. we face the following issue: Some former users were deleted via ldap. …It seems that there were pending activity mails for these users in the outbox that can not be delivered. Each time the cron job runs we get the log entries down below. We first saw this problems after upgrading to 25.0.1 (from 24.0.5). Is there a way to manually purge this outbox or solve the issue otherwise? Thanks in advance. ### Server configuration **Operating system**: Ubuntu 20.04.5 **Web server:** nginx **Database:** postgresql **PHP version:** 8.1.12 **Nextcloud version:** 25.0.1.1 **Where did you install Nextcloud from:** docker-compose file ``` version: '3' services: db: image: postgres:13 restart: always logging: driver: "json-file" options: max-file: "10" max-size: "10m" volumes: - ./db:/var/lib/postgresql/data env_file: - db.env redis: image: redis command: redis-server --requirepass *** logging: driver: "json-file" options: max-file: "10" max-size: "10m" restart: always app: container_name: app-server image: nextcloud:25.0.1-fpm restart: always logging: driver: "json-file" options: max-file: "10" max-size: "10m" expose: - '80' - '9000' volumes: - ./nextcloud:/var/www/html - ./www.overloaded.conf:/usr/local/etc/php-fpm.d/www.overloaded.conf - ./nextcloud.ini:/usr/local/etc/php/conf.d/nextcloud.ini environment: - POSTGRES_HOST=db - REDIS_HOST=redis - REDIS_HOST_PASSWORD=*** env_file: - db.env depends_on: - db - redis cron: image: nextcloud:25.0.1-fpm restart: always logging: driver: "json-file" options: max-file: "10" max-size: "10m" volumes: - ./nextcloud:/var/www/html entrypoint: /cron.sh depends_on: - db - redis - app onlyoffice-document-server: container_name: onlyoffice-document-server image: onlyoffice/documentserver:7.1 restart: always logging: driver: "json-file" options: max-file: "10" max-size: "10m" expose: - '80' - '443' volumes: - ./document_data:/var/www/onlyoffice/Data - ./document_log:/var/log/onlyoffice nginx: container_name: nginx-server image: nginx:1.21 restart: always logging: driver: "json-file" options: max-file: "10" max-size: "10m" ports: - 80:80 - 443:443 volumes: - ./nginx.conf:/etc/nginx/nginx.conf - ./cloud-cert.pem:/etc/nginx/cloud-cert.pem - ./private.pem:/etc/nginx/private.pem - ./nextcloud:/var/www/html depends_on: - db - redis - app volumes: db: nextcloud: document_data: document_log: app_data: ``` **Signing status:** Not sure what this means **Nextcloud configuration:** ``` { "system": { "minimum.supported.desktop.version": "3.4.1", "memcache.local": "\\OC\\Memcache\\APCu", "apps_paths": [ { "path": "\/var\/www\/html\/apps", "url": "\/apps", "writable": false }, { "path": "\/var\/www\/html\/custom_apps", "url": "\/custom_apps", "writable": true } ], "memcache.distributed": "\\OC\\Memcache\\Redis", "memcache.locking": "\\OC\\Memcache\\Redis", "redis": { "host": "***REMOVED SENSITIVE VALUE***", "password": "***REMOVED SENSITIVE VALUE***", "port": 6379 }, "instanceid": "***REMOVED SENSITIVE VALUE***", "passwordsalt": "***REMOVED SENSITIVE VALUE***", "secret": "***REMOVED SENSITIVE VALUE***", "trusted_domains": [ "***REMOVED SENSITIVE VALUE***", "nginx-server" ], "default_language": "de", "default_locale": "de", "default_phone_region": "de", "knowledgebaseenabled": true, "datadirectory": "***REMOVED SENSITIVE VALUE***", "dbtype": "pgsql", "version": "25.0.1.1", "overwrite.cli.url": "***REMOVED SENSITIVE VALUE***", "overwritehost": "***REMOVED SENSITIVE VALUE***", "overwriteprotocol": "https", "dbname": "***REMOVED SENSITIVE VALUE***", "dbhost": "***REMOVED SENSITIVE VALUE***", "dbport": "", "dbtableprefix": "oc_", "dbuser": "***REMOVED SENSITIVE VALUE***", "dbpassword": "***REMOVED SENSITIVE VALUE***", "installed": true, "onlyoffice": { "DocumentServerUrl": "\/ds-vpath\/", "DocumentServerInternalUrl": "http:\/\/onlyoffice-document-server\/", "StorageUrl": "http:\/\/nginx-server\/", "verify_peer_off": true }, "allow_local_remote_servers": "true", "ldapProviderFactory": "OCA\\User_LDAP\\LDAPProviderFactory", "mail_from_address": "***REMOVED SENSITIVE VALUE***", "mail_smtpmode": "smtp", "mail_sendmailmode": "smtp", "mail_domain": "***REMOVED SENSITIVE VALUE***", "mail_smtphost": "***REMOVED SENSITIVE VALUE***", "mail_smtpport": "25", "maintenance": false, "maintenance_window_start": 1, "mail_smtpauthtype": "PLAIN", "mail_smtpauth": 1, "mail_smtpname": "***REMOVED SENSITIVE VALUE***", "mail_smtppassword": "***REMOVED SENSITIVE VALUE***", "mail_smtpsecure": "tls", "auto_logout": false, "loglevel": 2, "app_install_overwrite": [ "spreed", "files_texteditor", "tasks", "quota_warning", "forms", "files_mindmap", "files_bpm", "drawio" ] } } ``` ### Logs #### Nextcloud log (data/nextcloud.log) ``` [activity] Warnung: Failed sending activity email to user '3ef6d5ba-f34d-103a-9a21-73d5657b9a5b'. at 2022-11-08T13:10:02+00:00 [activity] Fehler: Swift_TransportException: Expected response code 354 but got code "554", with message "554 5.5.1 Error: no valid recipients" at <<closure>> 0. /var/www/html/3rdparty/swiftmailer/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php line 344 Swift_Transport_AbstractSmtpTransport->assertResponseCode("554 5.5.1 Error ... n", [354]) 1. /var/www/html/3rdparty/swiftmailer/swiftmailer/lib/classes/Swift/Transport/EsmtpTransport.php line 305 Swift_Transport_AbstractSmtpTransport->executeCommand("DATA\r\n", [354], ["user@user@domain.tld"], false, null) 2. /var/www/html/3rdparty/swiftmailer/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php line 392 Swift_Transport_EsmtpTransport->executeCommand("DATA\r\n", [354], ["user@user@domain.tld"]) 3. /var/www/html/3rdparty/swiftmailer/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php line 499 Swift_Transport_AbstractSmtpTransport->doDataCommand(["user@domain.tld"]) 4. /var/www/html/3rdparty/swiftmailer/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php line 518 Swift_Transport_AbstractSmtpTransport->doMailTransaction(Swift_Message {}, "cloudmail@domain.tld", ["user@domain.tld"], ["user@domain.tld"]) 5. /var/www/html/3rdparty/swiftmailer/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php line 206 Swift_Transport_AbstractSmtpTransport->sendTo(Swift_Message {}, "cloudmail@domain.tld", ["3ef6d5ba-f34d-103a-9a21-73d5657b9a5b"], ["user@domain.tld"]) 6. /var/www/html/3rdparty/swiftmailer/swiftmailer/lib/classes/Swift/Mailer.php line 71 Swift_Transport_AbstractSmtpTransport->send(Swift_Message {}, ["user@domain.tld"]) 7. /var/www/html/lib/private/Mail/Mailer.php line 191 Swift_Mailer->send(Swift_Message {}, ["user@domain.tld"]) 8. /var/www/html/apps/activity/lib/MailQueueHandler.php line 415 OC\Mail\Mailer->send(OC\Mail\Message {}) 9. /var/www/html/apps/activity/lib/MailQueueHandler.php line 165 OCA\Activity\MailQueueHandler->sendEmailToUser("3ef6d5ba-f34d-103a-9a21-73d5657b9a5b", "user@domain.tld", "de", "Europe/Berlin", 1667913000) 10. /var/www/html/apps/activity/lib/BackgroundJob/EmailNotification.php line 61 OCA\Activity\MailQueueHandler->sendEmails(500, 1667913000) 11. /var/www/html/lib/private/BackgroundJob/Job.php line 54 OCA\Activity\BackgroundJob\EmailNotification->run(null) 12. /var/www/html/lib/private/BackgroundJob/TimedJob.php line 60 OC\BackgroundJob\Job->execute(OC\BackgroundJob\JobList {}, OC\Log {}) 13. /var/www/html/cron.php line 152 OC\BackgroundJob\TimedJob->execute(OC\BackgroundJob\JobList {}, OC\Log {}) at 2022-11-08T13:10:02+00:00 [PHP] Fehler: Error: strtolower(): Passing null to parameter #1 ($string) of type string is deprecated at /var/www/html/3rdparty/swiftmailer/swiftmailer/lib/classes/Swift/Transport/EsmtpTransport.php#144 at <<closure>> 0. <<closure>> OC\Log\ErrorHandler::onError(8192, "strtolower(): P ... d", "/var/www/html/3 ... p", 144) 1. /var/www/html/3rdparty/swiftmailer/swiftmailer/lib/classes/Swift/Transport/EsmtpTransport.php line 144 strtolower(null) 2. /var/www/html/3rdparty/swiftmailer/swiftmailer/lib/classes/Swift/SmtpTransport.php line 43 Swift_Transport_EsmtpTransport->setEncryption(null) 3. /var/www/html/lib/private/Mail/Mailer.php line 267 Swift_SmtpTransport->__construct() 4. /var/www/html/lib/private/Mail/Mailer.php line 254 OC\Mail\Mailer->getSmtpInstance() 5. /var/www/html/lib/private/Mail/Mailer.php line 180 OC\Mail\Mailer->getInstance() 6. /var/www/html/apps/activity/lib/MailQueueHandler.php line 415 OC\Mail\Mailer->send(OC\Mail\Message {}) 7. /var/www/html/apps/activity/lib/MailQueueHandler.php line 165 OCA\Activity\MailQueueHandler->sendEmailToUser("3ef6d5ba-f34d-103a-9a21-73d5657b9a5b", "user@domain.tld, "de", "Europe/Berlin", 1667913899) 8. /var/www/html/apps/activity/lib/BackgroundJob/EmailNotification.php line 61 OCA\Activity\MailQueueHandler->sendEmails(500, 1667913899) 9. /var/www/html/lib/private/BackgroundJob/Job.php line 54 OCA\Activity\BackgroundJob\EmailNotification->run(null) 10. /var/www/html/lib/private/BackgroundJob/TimedJob.php line 60 OC\BackgroundJob\Job->execute(OC\BackgroundJob\JobList {}, OC\Log {}) 11. /var/www/html/cron.php line 152 OC\BackgroundJob\TimedJob->execute(OC\BackgroundJob\JobList {}, OC\Log {}) at 2022-11-08T13:25:01+00:00 ```

The error should also happen when sending the test email from index.php/settings/admin right?

… no, there is no correlation. And I didn’t delete LDAP-Users

Related to this issue: Unlimited mail send retries with non-existent / deleted mail address · Issue #538 · nextcloud/activity · GitHub
I only have a lot of mail log entries like
Error: /var/lib/nethserver/vmail/user_surname@domain.de/Maildir/public/dovecot.index.pvt reset, view is now inconsistent

mrmarkuz · December 27, 2022, 11:18pm

Maybe there are remnants that aren’t shown in the user list?

capote · December 27, 2022, 11:50pm

YES! You are the greatest.

Thank you.