ssl error with tls/ssl smtp

ikkeT

The issue

I'm having odd ssl version number missmatch causing stacktrace in flarum error log, and error dialogs, but mail gets sent. It is very confusing though to have red error messages in gui.

Flarum is fresh 1.8.1 running on rhel9 php container.

Flarum information

Both tls and ssl options fail, but tls logs this:

[2025-05-10 15:02:21] flarum.ERROR: Swift_TransportException: Connection could not be established with host smtp.iki.fi :stream_socket_client(): SSL oper
ation failed with code 1. OpenSSL Error messages:
error:0A00010B:SSL routines::wrong version number in /opt/app-root/src/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/StreamBuffer.php:261

The swift is mentioned in composer log to be abandonware, so could it use too old ssl libs or version? Or could it be I need to change rhel image's ssl options?

The flarum composer setup is the originsl, only few extra extensions: ikke-t/flarumtree/1.x-ikke

Any ideas?

luceos

ikkeT swiftmailer will be replaced in flarum 2.0; it's an upstream dependency in laravel we have no influence over.

Other than that, the ssl error is not caused by the library, as it uses the ssl configuration of the server.

Can you share your email settings (mask credentials)? Did you capitalize the encryption?

ikkeT

luceos

Thanks for the answer. I noticed this in the other log, but no additional info:

[Mon May 12 05:32:40.703380 2025] [proxy_fcgi:error] [pid 74:tid 215] [client 100.64.0.2:16778] AH01071: Got error 'PHP message: PHP Deprecated:  Callables of the form ["Swift_SmtpTransport", "Swift_Transport_EsmtpTransport::__construct"] are deprecated in /opt/app-root/src/vendor/swiftmailer/swiftmailer/lib/classes/Swift/SmtpTransport.php on line 36; PHP message: PHP Deprecated:  Callables of the form ["Swift_Message", "Swift_Mime_SimpleMessage::__construct"] are deprecated in /opt/app-root/src/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Message.php on line 46; PHP message: PHP Fatal error:  Uncaught Laminas\\HttpHandlerRunner\\Exception\\EmitterException: Output has been emitted previously; cannot emit response in /opt/app-root/src/vendor/laminas/laminas-httphandlerrunner/src/Exception/EmitterException.php:20\nStack trace:\n#0 /opt/app-root/src/vendor/laminas/laminas-httphandlerrunner/src/Emitter/SapiEmitterTrait.php(42): Laminas\\HttpHandlerRunner\\Exception\\EmitterException::forOutputSent()\n#1 /opt/app-root/src/vendor/laminas/laminas-httphandlerrunner/src/Emitter/SapiEmitter.php(21): Laminas\\HttpHandlerRunner\\Emitter\\SapiEmitter->assertNoPreviousOutput()\n#2 /opt/app-root/src/vendor/laminas/laminas-httphandlerrunner/src/RequestHandlerRunner.php(75): Laminas\\HttpHandlerRunner\\Emitter\\SapiEmitter->emit(Object(Laminas\\Diactoros\\Response\\EmptyResponse))\n#3 /opt/app-root/src/vendor/flarum/core/src/Http/Server.php(45): Laminas\\HttpHandlerRunner\\RequestHandlerRunner->run()\n#4 /opt/app-root/src/public/index.php(26): Flarum\\Http\\Server->listen()\n#5 {main}\n  thrown in ...'

OK, good it's getting renewed. My settings are:

smtp.iki.fi
587
tls
usernape
passwd

As per these Finnish instructions. The odd thing is that each mail goes through still. No capitalization.

They both verify ok by using openssl s_client -connect smtp.iki.fi:587 or 465 from the same container.

ikkeT

Just in case, I tried this on x86 box instead of arm, the same failure.

192.168.117.59 - - [12/May/2025:18:44:08 +0000] "POST /api/mail/test HTTP/1.1" 200 556 "http://gpubox.ikenet:8080/admin" "Mozilla/5.0 (X11; Linux x86_64; rv:138.0) Gecko/20100101 Firefox/138.0"
[Mon May 12 18:44:12.634793 2025] [proxy_fcgi:error] [pid 226:tid 276] [client 192.168.117.59:42288] AH01071: Got error 'PHP message: PHP Deprecated:  Callables of the form ["Swift_SmtpTransport", "Swift_Transport_EsmtpTransport::__construct"] are deprecated in /opt/app-root/src/vendor/swiftmailer/swiftmailer/lib/classes/Swift/SmtpTransport.php on line 36; PHP message: PHP Deprecated:  Callables of the form ["Swift_Message", "Swift_Mime_SimpleMessage::__construct"] are deprecated in /opt/app-root/src/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Message.php on line 46; PHP message: PHP Fatal error:  Uncaught Laminas\\HttpHandlerRunner\\Exception\\EmitterException: Output has been emitted previously; cannot emit response in /opt/app-root/src/vendor/laminas/laminas-httphandlerrunner/src/Exception/EmitterException.php:20\nStack trace:\n#0 /opt/app-root/src/vendor/laminas/laminas-httphandlerrunner/src/Emitter/SapiEmitterTrait.php(42): Laminas\\HttpHandlerRunner\\Exception\\EmitterException::forOutputSent()\n#1 /opt/app-root/src/vendor/laminas/laminas-httphandlerrunner/src/Emitter/SapiEmitter.php(21): Laminas\\HttpHandlerRunner\\Emitter\\SapiEmitter->assertNoPreviousOutput()\n#2 /opt/app-root/src/vendor/laminas/laminas-httphandlerrunner/src/RequestHandlerRunner.php(75): Laminas\\HttpHandlerRunner\\Emitter\\SapiEmitter->emit(Object(Laminas\\Diactoros\\Response\\EmptyResponse))\n#3 /opt/app-root/src/vendor/flarum/core/src/Http/Server.php(45): Laminas\\HttpHandlerRunner\\RequestHandlerRunner->run()\n#4 /opt/app-root/src/public/index.php(26): Flarum\\Http\\Server->listen()\n#5 {main}\n  thrown in ...', referer: http://gpubox.ikenet:8080/admin

Also, tried smtp.gmail.com, gives the same problem.
Here is php flarum info if that would caught someone's eye:

Flarum core: 1.8.10
PHP version: 8.2.25
MySQL version: 11.7.2-MariaDB
Loaded extensions: Core, date, libxml, openssl, pcre, zlib, filter, hash, json, pcntl, random, readline, Reflection, SPL, session, standard, bcmath, bz2, calendar, ctype, curl, dom, mbstring, fileinfo, ftp, gd, gettext, gmp, iconv, intl, ldap, exif, mysqlnd, PDO, pgsql, Phar, posix, shmop, SimpleXML, soap, sockets, sqlite3, sysvmsg, sysvsem, sysvshm, tokenizer, xml, xmlwriter, xsl, mysqli, pdo_mysql, pdo_pgsql, pdo_sqlite, xmlreader, apcu, zip, Zend OPcache
+------------------------------+---------+--------+
| Flarum Extensions            |         |        |
+------------------------------+---------+--------+
| ID                           | Version | Commit |
+------------------------------+---------+--------+
| flarum-flags                 | v1.8.2  |        |
| flarum-approval              | v1.8.2  |        |
| flarum-tags                  | v1.8.4  |        |
| fof-upload                   | 1.8.3   |        |
| fof-doorman                  | 1.1.5   |        |
| flarum-suspend               | v1.8.4  |        |
| flarum-subscriptions         | v1.8.1  |        |
| flarum-sticky                | v1.8.2  |        |
| flarum-statistics            | v1.8.1  |        |
| flarum-nicknames             | v1.8.2  |        |
| flarum-mentions              | v1.8.5  |        |
| flarum-markdown              | v1.8.1  |        |
| flarum-lock                  | v1.8.2  |        |
| flarum-likes                 | v1.8.1  |        |
| flarum-lang-finnish          | v1.15.0 |        |
| flarum-lang-english          | v1.8.0  |        |
| flarum-emoji                 | v1.8.1  |        |
| flarum-bbcode                | v1.8.0  |        |
| clarkwinkelmann-passwordless | 2.0.0   |        |
+------------------------------+---------+--------+
Base URL: http://gpubox.ikenet:8080
Installation path: /opt/app-root/src
Queue driver: sync
Session driver: file
Mail driver: smtp
Debug mode: ON

ikkeT

Hmmm, I changed the base container to have php8.1 instead of 8.2, this makes it work. So 1.8.1 email doesn't work with 8.2 but works with 8.1 with these RHEL ubi base containers.

NamPhuong

u can reply me ? Tks

clarkwinkelmann

NamPhuong please start your own support discussion and describe your problem. Even if you see the same error message it could be a completely different cause.