Error while sending mail (with the + char in the localpart)

[moviuro]

Steps to reproduce

1. Login as administrator of the instance
2. Set up that user's email address with a + in the Avatar > Settings page (settings/user) (realaddress+tag@gmail.com for example)
3. In Administration > Basic Settings (settings/admin), try sending an email

Expected behaviour

Email is sent.

Actual behaviour

A problem occurred while sending the email. Please revise your settings. (Error: Address in mailbox given [moviuro+nexcloudadmin@] does not comply with RFC 2822, 3.6.2.)

This is a new error that didn't happen in previous versions (didn't have the issue on February 14th, for instance).

BTW: the localpart of a recipient can mostly NEVER be properly validated server-side. A + sign is just as valid as a - or _.

BTW: it is impossible for me to change the email address from within Nextcloud: I'll open another bug for that.

EDIT: Looks like #8387 ?

Server configuration

Operating system: FreeBSD 12.1

Web server: nginx

Database: Postgre

PHP version: 7.3.17

Nextcloud version: 18.0.4

Updated from an older Nextcloud/ownCloud or fresh install: Upgraded

Where did you install Nextcloud from: pkg(8)

Signing status: N/A

List of activated apps:

App list

Enabled: - accessibility: 1.4.0 - activity: 2.11.0 - cloud_federation_api: 1.1.0 - comments: 1.8.0 - dav: 1.14.0 - federatedfilesharing: 1.8.0 - federation: 1.8.0 - files: 1.13.1 - files_pdfviewer: 1.7.0 - files_rightclick: 0.15.2 - files_sharing: 1.10.1 - files_trashbin: 1.8.0 - files_versions: 1.11.0 - files_videoplayer: 1.7.0 - firstrunwizard: 2.7.0 - logreader: 2.3.0 - lookup_server_connector: 1.6.0 - music: 0.14.0 - nextcloud_announcements: 1.7.0 - notifications: 2.6.0 - oauth2: 1.6.0 - password_policy: 1.8.0 - photos: 1.0.0 - previewgenerator: 2.3.0 - privacy: 1.2.0 - provisioning_api: 1.8.0 - recommendations: 0.6.0 - serverinfo: 1.8.0 - settings: 1.0.0 - sharebymail: 1.8.0 - support: 1.1.0 - survey_client: 1.6.0 - systemtags: 1.8.0 - text: 2.0.0 - theming: 1.9.0 - twofactor_backupcodes: 1.7.0 - twofactor_totp: 4.1.3 - updatenotification: 1.8.0 - viewer: 1.2.0 - workflowengine: 2.0.0 Disabled: - admin_audit - encryption - files_external - user_ldap

Nextcloud configuration:

Config report

{ "system": { "instanceid": "***REMOVED SENSITIVE VALUE***", "passwordsalt": "***REMOVED SENSITIVE VALUE***", "secret": "***REMOVED SENSITIVE VALUE***", "trusted_domains": [ "sco.popho.be" ], "datadirectory": "***REMOVED SENSITIVE VALUE***", "overwrite.cli.url": "https:\/\/next.cloud.mydomain.com", "dbtype": "pgsql", "version": "18.0.4.2", "dbname": "***REMOVED SENSITIVE VALUE***", "dbhost": "***REMOVED SENSITIVE VALUE***", "dbport": "", "dbtableprefix": "oc_", "dbuser": "***REMOVED SENSITIVE VALUE***", "dbpassword": "***REMOVED SENSITIVE VALUE***", "installed": true, "mail_smtpmode": "smtp", "mail_smtpauthtype": "LOGIN", "mail_smtpsecure": "ssl", "mail_from_address": "moviuro", "mail_domain": "***REMOVED SENSITIVE VALUE***", (that one little offering from Google) "mail_smtpauth": 1, "mail_smtphost": "***REMOVED SENSITIVE VALUE***", "mail_smtpport": "465", "mail_smtpname": "***REMOVED SENSITIVE VALUE***", "mail_smtppassword": "***REMOVED SENSITIVE VALUE***", "theme": "", "loglevel": 2, "maintenance": false, "apps_paths": [ { "path": "\/usr\/local\/www\/nextcloud\/apps", "url": "\/apps", "writable": true }, { "path": "\/usr\/local\/www\/nextcloud\/apps-pkg", "url": "\/apps-pkg", "writable": false } ], "memcache.local": "\\OC\\Memcache\\APCu", "mail_sendmailmode": "smtp" } }

Are you using external storage, if yes which one: NOPE

Are you using encryption: no

Are you using an external user-backend, if yes which one: no

Web server error log

Web server error log

Nextcloud log (data/nextcloud.log)

Nextcloud log

{"reqId":"OkWOZYHx8uoZ0shRXEa5","level":3,"time":"2020-05-18T16:45:56+00:00","remoteAddr":"10.21.10.12","user":"nextcloud-administrator","app":"settings","method":"POST","url":"/ocs/v2.php/cloud/users/doofar/welcome","message":{"Exception":"Swift_RfcComplianceException","Message":"Address in mailbox given [doofar.mydomainwithnodots@] does not comply with RFC 2822, 3.6.2.","Code":0,"Trace":[{"file":"/usr/local/www/nextcloud/3rdparty/swiftmailer/swiftmailer/lib/classes/Swift/Mime/Headers/MailboxHeader.php","line":272,"function":"assertValidAddress","class":"Swift_Mime_Headers_MailboxHeader","type":"->","args":["doofar.mydomainwithnodots@"]},{"file":"/usr/local/www/nextcloud/3rdparty/swiftmailer/swiftmailer/lib/classes/Swift/Mime/Headers/MailboxHeader.php","line":117,"function":"normalizeMailboxes","class":"Swift_Mime_Headers_MailboxHeader","type":"->","args":[{"doofar.mydomainwithnodots@":"Doofar"}]},{"file":"/usr/local/www/nextcloud/3rdparty/swiftmailer/swiftmailer/lib/classes/Swift/Mime/Headers/MailboxHeader.php","line":74,"function":"setNameAddresses","class":"Swift_Mime_Headers_MailboxHeader","type":"->","args":[{"doofar.mydomainwithnodots@":"Doofar"}]},{"file":"/usr/local/www/nextcloud/3rdparty/swiftmailer/swiftmailer/lib/classes/Swift/Mime/SimpleHeaderFactory.php","line":61,"function":"setFieldBodyModel","class":"Swift_Mime_Headers_MailboxHeader","type":"->","args":[{"doofar.mydomainwithnodots@":"Doofar"}]},{"file":"/usr/local/www/nextcloud/3rdparty/swiftmailer/swiftmailer/lib/classes/Swift/Mime/SimpleHeaderSet.php","line":71,"function":"createMailboxHeader","class":"Swift_Mime_SimpleHeaderFactory","type":"->","args":["To",{"doofar.mydomainwithnodots@":"Doofar"}]},{"file":"/usr/local/www/nextcloud/3rdparty/swiftmailer/swiftmailer/lib/classes/Swift/Mime/SimpleMessage.php","line":323,"function":"addMailboxHeader","class":"Swift_Mime_SimpleHeaderSet","type":"->","args":["To",{"doofar.mydomainwithnodots@":"Doofar"}]},{"file":"/usr/local/www/nextcloud/lib/private/Mail/Message.php","line":149,"function":"setTo","class":"Swift_Mime_SimpleMessage","type":"->","args":[{"doofar.mydomainwithnodots@":"Doofar"}]},{"file":"/usr/local/www/nextcloud/apps-pkg/settings/lib/Mailer/NewUserMailHelper.php","line":172,"function":"setTo","class":"OC\\Mail\\Message","type":"->","args":[{"doofar.mydomainwithnodots@":"Doofar"}]},{"file":"/usr/local/www/nextcloud/apps-pkg/provisioning_api/lib/Controller/UsersController.php","line":975,"function":"sendMail","class":"OCA\\Settings\\Mailer\\NewUserMailHelper","type":"->","args":[{"__class__":"OC\\User\\User"},{"__class__":"OC\\Mail\\EMailTemplate"}]},{"file":"/usr/local/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php","line":170,"function":"resendWelcomeMessage","class":"OCA\\Provisioning_API\\Controller\\UsersController","type":"->","args":["doofar"]},{"file":"/usr/local/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php","line":99,"function":"executeController","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->","args":[{"__class__":"OCA\\Provisioning_API\\Controller\\UsersController"},"resendWelcomeMessage"]},{"file":"/usr/local/www/nextcloud/lib/private/AppFramework/App.php","line":125,"function":"dispatch","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->","args":[{"__class__":"OCA\\Provisioning_API\\Controller\\UsersController"},"resendWelcomeMessage"]},{"file":"/usr/local/www/nextcloud/lib/private/AppFramework/Routing/RouteActionHandler.php","line":47,"function":"main","class":"OC\\AppFramework\\App","type":"::","args":["OCA\\Provisioning_API\\Controller\\UsersController","resendWelcomeMessage",{"__class__":"OC\\AppFramework\\DependencyInjection\\DIContainer"},{"userId":"doofar","_route":"ocs.provisioning_api.Users.resendWelcomeMessage"}]},{"function":"__invoke","class":"OC\\AppFramework\\Routing\\RouteActionHandler","type":"->","args":[{"userId":"doofar","_route":"ocs.provisioning_api.Users.resendWelcomeMessage"}]},{"file":"/usr/local/www/nextcloud/lib/private/Route/Router.php","line":299,"function":"call_user_func","args":[{"__class__":"OC\\AppFramework\\Routing\\RouteActionHandler"},{"userId":"doofar","_route":"ocs.provisioning_api.Users.resendWelcomeMessage"}]},{"file":"/usr/local/www/nextcloud/ocs/v1.php","line":82,"function":"match","class":"OC\\Route\\Router","type":"->","args":["/ocsapp/cloud/users/doofar/welcome"]},{"file":"/usr/local/www/nextcloud/ocs/v2.php","line":24,"args":["/usr/local/www/nextcloud/ocs/v1.php"],"function":"require_once"}],"File":"/usr/local/www/nextcloud/3rdparty/swiftmailer/swiftmailer/lib/classes/Swift/Mime/Headers/MailboxHeader.php","Line":355,"CustomMessage":"Can't send new user mail to doofar.mydomainwithnodots@amaildomain.com"},"userAgent":"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.138 Safari/537.36","version":"18.0.4.2"}

[szaimen]

Is this Issue still valid? If not, please close this issue. Thanks! :)

[moviuro]

Indeed, can't reproduce!