Hi @ralflang .
Sometimes i got IMP is marked as authenticated, but no credentials can be found in session. in IMP
The following can be found in horde.log
HORDE 2026-07-30T11:09:42+00:00 warning: [imp] PHP ERROR: foreach() argument must be of type array|object, null given [pid 2925938 on line 273 of "/srv/horde/vendor/horde/imp/lib/Mailbox/SessionCache.php"]
fig/event-dispatcher-util 1.4.0 Useful utility classes and traits for implementing the PSR events standard
horde/activesync 3.2.0 ActiveSync server library
horde/alarm 3.0.0 Alarm library
horde/argv 3.0.0 Command-line argument parsing library
horde/auth 3.0.0 Authentication and user management library
horde/autoloader 3.0.0 Autoloader library
horde/browser 3.0.0 Browser detection library
horde/cache 3.0.0 Caching library
horde/cli 3.0.0 Command line interface library
horde/cli_modular 3.0.0 Modular command line interface library
horde/composer 1.0.0 Handle composer.json files and composer directory structures without composer dependency
horde/compress 3.0.0 Compression library
horde/compress_fast 2.0.0 Fast compression library
horde/constraint 3.0.0 Modern constraint library with PHP 8.1+ type safety
horde/content 3.0.0 Tagging application
horde/controller 3.0.0 Controller library
horde/core 3.3.0 Core Horde Framework library
horde/crypt 3.0.0 Cryptography library
horde/crypt_blowfish 2.0.0 Blowfish encryption library
horde/css_parser 2.0.0 CSS parser library
horde/cssminify 2.0.0 CSS minification library
horde/data 3.0.0 Data import and export library
horde/date 3.0.0 Date library
horde/date_parser 3.0.0 Date parser library
horde/dav 2.0.0 WebDAV, CalDAV, and CardDAV library
horde/db 3.0.1 Database abstraction library
horde/editor 3.0.0 WYSIWYG editor library
horde/eventdispatcher 1.0.0 A simple PSR-14 EventDispatcher / ListenerProvider system for Horde
horde/exception 3.0.1 Exception handler library
horde/form 3.1.2 Form library
horde/group 3.0.0 User groups library supporting many backend types.
horde/hashtable 2.0.1 Hash table client library
horde/history 3.0.0 History tracking library
horde/horde 6.2.1 Horde base application
horde/horde-installer-plugin 3.6.0 Horde Installer Plugin for Composer
horde/hordectl 1.1.0 Scenario deployer library
horde/hordeymlfile 1.0.0 Handle .horde.yml file and changelog.yml file
horde/http 3.1.0 HTTP client library
horde/http_server 1.0.1 HTTP Request Handling Library adhering to PSR-15 standard. This evolved out of horde/contro...
horde/icalendar 3.0.0 iCalendar and vCard library
horde/identity 1.0.0 Short headline for Identity
horde/idna 2.0.0 IDNA normalization library
horde/image 3.0.0 Image library
horde/imap_client 3.0.1 IMAP client library
horde/imp 7.1.1 Webmail application
horde/ingo 4.0.1 Email filter rules manager application
horde/injector 3.0.0 Dependency injection container library
horde/itip 3.0.0 iTip invitation response library
horde/javascriptminify 2.0.0 JavaScript minification library
horde/jwt 1.0.0 Horde RFC 7519 JSON Web Token (JWT) Library
horde/kronolith 5.0.3 Calendar and scheduling application
horde/listheaders 2.0.0 List headers parsing library
horde/lock 3.0.0 Resource locking library
horde/log 3.0.1 Logging library
horde/logintasks 3.0.0 Login tasks library
horde/mail 3.0.0 Mail library
horde/mail_autoconfig 2.0.0 Mail server autoconfiguration library
horde/managesieve 2.0.0 ManageSieve client library
horde/mapi 2.0.1 MAPI utility library
horde/memcache 3.0.0 Memcache client library
horde/mime 3.0.0 MIME library
horde/mime_viewer 3.0.0 MIME viewer library
horde/mnemo 5.0.0 Notes application
horde/nag 5.0.0 Task list application
horde/nls 3.0.0 Native language support library
horde/notification 3.0.0 Notification library implementing subject-observer pattern
horde/oauth 4.0.0 OAuth 1.0a, OAuth 2.0 and OpenID Connect library
horde/pack 2.0.1 Data packing library
horde/perms 3.1.0 Permissions library
horde/phpconfigfile 0.0.1 Read and write config files as PHP Code
horde/prefs 3.0.1 User preferences library
horde/rdo 3.0.0 ORM (object relational-mapping) library
horde/routes 3.0.1 URL routing/mapping library
horde/rpc 3.1.0 RPC library
horde/secret 3.0.0 Secret key encryption library with authenticated encryption
horde/serialize 3.0.0 Data serialization library
horde/service_weather 3.0.0RC1 Weather service library
horde/sessionhandler 3.0.0 Session handler library
horde/share 3.0.0 Resource sharing library
horde/smtp 2.0.0 SMTP and LMTP client library
horde/socket_client 3.0.0 Network socket client library
horde/spellchecker 3.0.0 Spellchecking library
horde/stream 2.0.0 PHP streams library
horde/stream_filter 3.0.0 PHP stream filters library
horde/stream_wrapper 3.0.0 PHP stream wrappers library
horde/support 3.0.0 Supporting library
horde/template 3.0.0 Template library (deprecated)
horde/test 3.0.0 Unit testing library
horde/text_diff 3.0.0 Text diff generation and rendering library
horde/text_filter 3.0.0 Text filtering and conversion library
horde/text_flowed 3.0.0 Flowed text library
horde/timeobjects 3.0.0beta4 Time-based objects application
horde/timezone 2.0.0 Timezone library
horde/token 3.0.0 Tokens library
horde/translation 3.0.0 Translation library
horde/tree 3.0.0 Tree rendering library
horde/turba 5.0.2 Address book application
horde/url 3.0.0 URL library
horde/util 3.0.1 Utility library
horde/version 1.0.0 Handle Semantic Version 2.0.0 format and similar semantic version formats
horde/vfs 3.0.1 Virtual file system library
horde/view 3.0.0 View pattern library
horde/xml_element 3.0.0 XML element library
horde/yaml 3.0.1 Roundtrip-capable YAML parsing and writing library
mikepultz/netdns2 2.0.8 PHP DNS Resolver and Updater Library
pear/console_color2 0.1.2 This Class allows you to easily use ANSI console colors in your application.
pear/console_table 1.3.1 Library that makes it easy to build console style tables.
php81_bc/strftime 0.7.6 Locale-formatted strftime using IntlDateFormatter (PHP 8.1 compatible)
psr/container 2.0.2 Common Container Interface (PHP FIG PSR-11)
psr/event-dispatcher 1.0.0 Standard interfaces for event handling.
psr/http-client 1.0.3 Common interface for HTTP clients
psr/http-factory 1.1.0 PSR-17: Common interfaces for PSR-7 HTTP message factories
psr/http-message 2.0 Common interface for HTTP messages
psr/http-server-handler 1.0.2 Common interface for HTTP server-side request handler
psr/http-server-middleware 1.0.2 Common interface for HTTP server-side middleware
psr/log 3.0.2 Common interface for logging libraries
psr/simple-cache 3.0.0 Common interfaces for simple caching
sabberworm/php-css-parser 9.4.0 Parser for CSS Files written in PHP
sabre/dav 4.7.1 WebDAV Framework for PHP
sabre/event 5.1.9 sabre/event is a library for lightweight event-based programming
sabre/http 5.1.13 The sabre/http library provides utilities for dealing with http requests and responses.
sabre/uri 2.3.4 Functions for making sense out of URIs.
sabre/vobject 4.6.1 The VObject library for PHP allows you to easily parse and manipulate iCalendar and vCard o...
sabre/xml 2.2.11 sabre/xml is an XML library that you may not hate.
thecodingmachine/safe 3.4.0 PHP core functions that throw exceptions instead of returning FALSE on error
tinymce/tinymce 8.8.2 Web based JavaScript HTML WYSIWYG editor control.
Regards Michael.
Hi @ralflang .
Sometimes i got
IMP is marked as authenticated, but no credentials can be found in session.in IMPThe following can be found in horde.log
Regards Michael.