Hi, I've recently upgraded my SM to the latest 1.4.23-svn to support php-8.0.25 on fedora35 with apache-2.4.54 and it appears some users are unable to login. It results in an apache 500 error that I don't know how to troubleshoot. Some users have no difficulty logging in. I've also deleted any user prefs or data/ info related to the user. I'ver verified the users can login directly using IMAP, and it appears SM is also successfully logging them in: Nov 22 11:16:54 cipher dovecot[1228]: imap-login: Login: user=<alex>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=1386757, secured, session=<UskYgBHuhJx/AAAB> Nov 22 11:16:54 cipher dovecot[1228]: imap(alex)<1386757><UskYgBHuhJx/AAAB>: Disconnected: Logged out in=44 out=1022 deleted=0 expunged=0 trashed=0 hdr_count=0 hdr_bytes=0 body_count=0 body_bytes=0 Nov 22 11:16:54 cipher squirrelmail[664245]: Successful webmail login: by alex (example.com) at 68.195.111.42 I have the following plugins installed, although I've tried limiting it even further, and I don't think one of them is causing the problem. I did have to delete quicksave, as that would prevent the inbox from being displayed - perhaps that's already included? 1.squirrelspell 2. compatibility 3. squirrel_logger 4. administrator 5. calendar 6. delete_move_next 7. filters 8. folder_sizes 9. local_autorespond_forward 10. lockout 11. message_details 12. sent_subfolders 13. timeout_user 14. info I've also enabled html_errors, log_errors, display_startup_errors, error_reporting = E_ALL, and error_log, but there aren't any errors generated when the 500 error occurs. The only indication that an error occurred is in modsec_security.log: --35225a73-F-- HTTP/1.1 500 Internal Server Error Expires: Thu, 19 Nov 1981 08:52:00 GMT Cache-Control: no-store, no-cache, must-revalidate Pragma: no-cache Set-Cookie: SQMSESSID=2e73bd53fdfeedd857900953d6a69c13; path=/webmail/; secure; HttpOnly; SameSite=Strict X-Frame-Options: SAMEORIGIN Strict-Transport-Security: max-age=63072000; includeSubDomains X-XSS-Protection: 1; mode=block X-Content-Type-Options: nosniff Feature-Policy: geolocation 'self'; vibrate 'none' Content-Security-Policy: frame-ancestors 'self' Content-Length: 0 Connection: close Content-Type: text/html; charset=UTF-8 The configtest.php script also appears to run correctly: SquirrelMail configtest This script will try to check some aspects of your SquirrelMail configuration and point you to errors wherever it can find them. You need to go run conf.pl in the config/ directory first before you run this script. SquirrelMail version: 1.4.23 [SVN] Config file version: 1.4.0 Config file last modified: 22 November 2022 11:37:14 Checking PHP configuration... PHP version 8.0.25 OK. Running as apache(48) / apache(48) display_errors: error_reporting: 32767 variables_order OK: GPCS. PHP extensions OK. Dynamic loading is disabled. Checking paths... Data dir OK. Attachment dir OK. Plugins OK. Themes OK. Default language OK. Base URL detected as: https://example.com/webmail/src (location base autodetected) Checking outgoing mail service.... SMTP server OK (220 cipher.example.com ESMTP Postfix) Checking IMAP service.... IMAP server ready (* OK [CAPABILITY IMAP4rev1 SASL-IR LOGIN-REFERRALS ID ENABLE IDLE LITERAL+ STARTTLS AUTH=PLAIN AUTH=LOGIN] Dovecot ready.) Capabilities: * CAPABILITY IMAP4rev1 SASL-IR LOGIN-REFERRALS ID ENABLE IDLE LITERAL+ STARTTLS AUTH=PLAIN AUTH=LOGIN Checking internationalization (i18n) settings... gettext - Gettext functions are available. On some systems you must have appropriate system locales compiled. mbstring - Mbstring functions are available. recode - Recode functions are unavailable. iconv - Iconv functions are available. timezone - Webmail users can change their time zone settings. Checking database functions... not using database functionality. Congratulations, your SquirrelMail setup looks fine to me! Any ideas greatly appreciated. ----- squirrelmail-users mailing list Posting guidelines: http://squirrelmail.org/postingguidelines List address: squirrelmail-users@xxxxxxxxxxxxxxxxxxxxx List archives: http://news.gmane.org/gmane.mail.squirrelmail.user List info (subscribe/unsubscribe/change options): https://lists.sourceforge.net/lists/listinfo/squirrelmail-users