[Bug]: No E-Mails sent in Nextcloud 26.0.0

[esvk]

⚠️ This issue respects the following points: ⚠️

• This is a bug, not a question or a configuration/webserver/proxy issue.
• This issue is not already reported on Github (I've searched it).
• Nextcloud Server is up to date. See Maintenance and Release Schedule for supported versions.
• Nextcloud Server is running on 64bit capable CPU, PHP and OS.
• I agree to follow Nextcloud's Code of Conduct.

Bug description

After upgrading to nc 26.0.0 no e-mails are sent. I already red #37329 this bug report and therefore installed the suggested patch 37340 - unfortunetly with no success. We are absolutely sure, that the credentials and sever-data are correct. This data works within WordPress on the same host.

Steps to reproduce

1. Fill in data about the Mail-Server
2. Press Save (speichern)
3. Press Send-E-Mail (E-Mail-Senden)

Expected behavior

I would expect that nextcloud sends the test-e-mail to the given e-mail-address.

Installation method

None

Nextcloud Server version

26

Operating system

Debian/Ubuntu

PHP engine version

PHP 8.1

Web server

Apache (supported)

Database engine version

MySQL

Is this bug present after an update or on a fresh install?

Updated to a major version (ex. 22.2.3 to 23.0.1)

Are you using the Nextcloud Server Encryption module?

None

What user-backends are you using?

• Default user-backend (database)
• LDAP/ Active Directory
• SSO - SAML
• Other

Configuration report

{
    "system": {
        "instanceid": "***REMOVED SENSITIVE VALUE***",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "trusted_domains": [
            "nextcloud.domain.de",
            "nextcloud.domain.biz"
        ],
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "dbtype": "mysql",
        "version": "26.0.0.11",
        "overwrite.cli.url": "https:\/\/nextcloud.domain.de",
        "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",
        "default_language": "de_DE",
        "default_phone_region": "de_DE",
        "mail_smtpmode": "smtp",
        "mail_sendmailmode": "smtp",
        "mail_smtpdebug": true,
        "skeletondirectory": "",
        "enable_avatars": false,
        "defaultapp": "files",
        "memcache.local": "\\OC\\Memcache\\Redis",
        "redis": {
            "host": "***REMOVED SENSITIVE VALUE***",
            "port": 6379
        },
        "theme": "domain-theme",
        "simpleSignUpLink.shown": false,
        "loglevel": 2,
        "maintenance": false,
        "activity_use_cached_mountpoints": true,
        "app_install_overwrite": [
            "groupfolders"
        ],
        "mail_from_address": "***REMOVED SENSITIVE VALUE***",
        "mail_domain": "***REMOVED SENSITIVE VALUE***",
        "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpport": "25",
        "mail_smtpauth": 1,
        "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
        "mail_smtppassword": "***REMOVED SENSITIVE VALUE***"
    }
}

List of activated Apps

Enabled:
  - activity: 2.18.0
  - bruteforcesettings: 2.6.0
  - circles: 26.0.0
  - cloud_federation_api: 1.9.0
  - comments: 1.16.0
  - dashboard: 7.6.0
  - dav: 1.25.0
  - federatedfilesharing: 1.16.0
  - federation: 1.16.0
  - files: 1.21.1
  - files_pdfviewer: 2.7.0
  - files_retention: 1.15.0
  - files_rightclick: 1.5.0
  - files_sharing: 1.18.0
  - files_trashbin: 1.16.0
  - files_versions: 1.19.1
  - groupfolders: 14.0.0
  - logreader: 2.11.0
  - lookup_server_connector: 1.14.0
  - nextcloud_announcements: 1.15.0
  - notifications: 2.14.0
  - oauth2: 1.14.0
  - password_policy: 1.16.0
  - privacy: 1.10.0
  - provisioning_api: 1.16.0
  - recommendations: 1.5.0
  - related_resources: 1.1.0-alpha1
  - serverinfo: 1.16.0
  - settings: 1.8.0
  - sharebymail: 1.16.0
  - support: 1.9.0
  - survey_client: 1.14.0
  - systemtags: 1.16.0
  - text: 3.7.2
  - theming: 2.1.1
  - theming_customcss: 1.13.0
  - twofactor_backupcodes: 1.15.0
  - updatenotification: 1.16.0
  - user_ldap: 1.16.0
  - user_status: 1.6.0
  - viewer: 1.10.0
  - weather_status: 1.6.0
  - workflowengine: 2.8.0
Disabled:
  - admin_audit: 1.16.0
  - contactsinteraction: 1.7.0 (installed 1.0.0)
  - encryption: 2.14.0
  - files_external: 1.18.0
  - firstrunwizard: 2.15.0 (installed 2.6.0)
  - photos: 2.2.0 (installed 1.1.0)
  - suspicious_login: 4.4.0
  - twofactor_totp: 8.0.0-alpha.0

Nextcloud Signing status

No errors have been found.

Nextcloud Logs

{"reqId":"4w2r2amHKjLha508JPgv","level":2,"time":"2023-04-12T18:46:18+00:00","remoteAddr":"172.16.32.2","user":"423u01","app":"core","method":"PROPFIND","url":"/remote.php/webdav","message":"Login failed: 'yvonne.lederle@lederle-bau.de' (Remote IP: '172.16.32.2')","userAgent":"Microsoft-WebDAV-MiniRedir/10.0.19044","version":"26.0.0.11","data":{"app":"core"}}

Additional info

No response

[BrookeDot]

I was not able to replicate this on Nextcloud 26 running on NGINX and PHP 8.2.x. Are there any additional errors that you can report. Or does that SMTP server work outside of Nextcloud?

[esvk]

The smtp-server works outside of Nextcloud. It‘s on another host at the same network.

[solracsf]

Have you tried the other options at #37329 (SSL options, see all comments)?

[esvk]

I increased the log-level and got this error-message: {"reqId":"gJcNQ3UDR0QrX4BgzM0o","level":0,"time":"2023-04-13T13:29:20+00:00","remoteAddr":"172.16.32.2","user":"markus_7684","app":"core","method":"POST","url":"/index.php/settings/admin/mailtest","message":"Sending mail to \"Array\n(\n    ***@***.*** => Markus Zimmermann\n)\n\" with subject \"Test der E-Mail-Einstellungen\" failed","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36","version":"26.0.0.11","exception":{"Exception":"Symfony\\Component\\Mailer\\Exception\\TransportException","Message":"Unable to connect with STARTTLS: stream_socket_enable_crypto(): SSL operation failed with code 1. OpenSSL Error messages:\nerror:1416F086:SSL routines:tls_process_server_certificate:certificate verify failed","Code":0,"Trace":[{"function":"Symfony\\Component\\Mailer\\Transport\\Smtp\\Stream\\{closure}","class":"Symfony\\Component\\Mailer\\Transport\\Smtp\\Stream\\SocketStream","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/html/nextcloud/3rdparty/symfony/mailer/Transport/Smtp/Stream/SocketStream.php","line":174,"function":"stream_socket_enable_crypto"},{"file":"/var/www/html/nextcloud/3rdparty/symfony/mailer/Transport/Smtp/EsmtpTransport.php","line":115,"function":"startTLS","class":"Symfony\\Component\\Mailer\\Transport\\Smtp\\Stream\\SocketStream","type":"->"},{"file":"/var/www/html/nextcloud/3rdparty/symfony/mailer/Transport/Smtp/SmtpTransport.php","line":253,"function":"doHeloCommand","class":"Symfony\\Component\\Mailer\\Transport\\Smtp\\EsmtpTransport","type":"->"},{"file":"/var/www/html/nextcloud/3rdparty/symfony/mailer/Transport/Smtp/SmtpTransport.php","line":194,"function":"start","class":"Symfony\\Component\\Mailer\\Transport\\Smtp\\SmtpTransport","type":"->"},{"file":"/var/www/html/nextcloud/3rdparty/symfony/mailer/Transport/AbstractTransport.php","line":72,"function":"doSend","class":"Symfony\\Component\\Mailer\\Transport\\Smtp\\SmtpTransport","type":"->"},{"file":"/var/www/html/nextcloud/3rdparty/symfony/mailer/Transport/Smtp/SmtpTransport.php","line":136,"function":"send","class":"Symfony\\Component\\Mailer\\Transport\\AbstractTransport","type":"->"},{"file":"/var/www/html/nextcloud/3rdparty/symfony/mailer/Mailer.php","line":45,"function":"send","class":"Symfony\\Component\\Mailer\\Transport\\Smtp\\SmtpTransport","type":"->"},{"file":"/var/www/html/nextcloud/lib/private/Mail/Mailer.php","line":217,"function":"send","class":"Symfony\\Component\\Mailer\\Mailer","type":"->"},{"file":"/var/www/html/nextcloud/apps/settings/lib/Controller/MailSettingsController.php","line":168,"function":"send","class":"OC\\Mail\\Mailer","type":"->"},{"file":"/var/www/html/nextcloud/lib/private/AppFramework/Http/Dispatcher.php","line":230,"function":"sendTestMail","class":"OCA\\Settings\\Controller\\MailSettingsController","type":"->"},{"file":"/var/www/html/nextcloud/lib/private/AppFramework/Http/Dispatcher.php","line":137,"function":"executeController","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->"},{"file":"/var/www/html/nextcloud/lib/private/AppFramework/App.php","line":183,"function":"dispatch","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->"},{"file":"/var/www/html/nextcloud/lib/private/Route/Router.php","line":315,"function":"main","class":"OC\\AppFramework\\App","type":"::"},{"file":"/var/www/html/nextcloud/lib/base.php","line":1055,"function":"match","class":"OC\\Route\\Router","type":"->"},{"file":"/var/www/html/nextcloud/index.php","line":36,"function":"handleRequest","class":"OC","type":"::"}],"File":"/var/www/html/nextcloud/3rdparty/symfony/mailer/Transport/Smtp/Stream/SocketStream.php","Line":171,"message":"Sending mail to \"Array\n(\n    ***@***.*** => Markus Zimmermann\n)\n\" with subject \"Test der E-Mail-Einstellungen\" failed","exception":{},"CustomMessage":"Sending mail to \"Array\n(\n    ***@***.*** => Markus Zimmermann\n)\n\" with subject \"Test der E-Mail-Einstellungen\" failed"}} Therefore I'll like to test whether the following code (as you mentioned:#37329) in config.php can do the trick: 'mail_smtpstreamoptions' =>.    array (      'ssl' =>.      array (        'allow_self_signed' => true,        'verify_peer' => false,        'verify_peer_name' => false;      ),    ), As soon as I add this into config.php the systems breaks. As you can see, I'm not a (php) developer. Can you tell me, if there is a syntax-error in the code? I can't get it work. Thank you very much. Mit freundlichen Grüßen   mareco gmbh & co.kg Dipl.-Ing.(FH) Markus Zimmermann Geschäftsführer der Komplementärin   Rothelebuch 7, 87637 Seeg Tel. +49 (8364) 984009-0 Fax. +49 (8364) 984009-9 E-Mail. ***@***.*** Internet. www.mareco.de     Sitz Seeg, HRA8889 Amtsgericht Kempten   Persönlich haftende Gesellschafterin CRM Verwaltungs-GmbH Sitz Seeg, HRB9745 Amtsgericht Kempten Geschäftsführer Markus Zimmermann  

…

-----Ursprüngliche Nachricht----- Von: ***@***.***> Gesendet: Mittwoch 12. April 2023 22:30 An: nextcloud/server ***@***.***> CC: Markus Zimmermann ***@***.***>; Author ***@***.***> Betreff: Re: [nextcloud/server] [Bug]: No E-Mails sent in Nextcloud 26.0.0 (Issue #37694) Have you tried the other options at #37329 (SSL options, see all comments)? — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you authored the thread.Message ID: ***@***.***>

[esvk]

I corrected the syntax errors - and now it works. Thank you!

[4001982248998]

For everyone else having to work around this bug, here is a corrected syntax:

  'mail_smtpstreamoptions' =>
  array (
    'ssl' =>
    array (
      'allow_self_signed' => true,
      'verify_peer' => false,
      'verify_peer_name' => false,
    ),
  ),

[zaferfe]

thanks a lot