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[Mailer] Switching to new array-shape config format #21597

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[Mailer] Switching to new array-shape config format #21597

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[Mailer] Switching to new array-shape config format
ThomasLandauer Nov 27, 2025
105eacb
Update mailer.rst
ThomasLandauer Nov 27, 2025
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17 changes: 10 additions & 7 deletions mailer.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -1675,15 +1675,18 @@
.. code-block:: php

// config/packages/mailer.php
use Symfony\Config\FrameworkConfig;
use function Symfony\Component\DependencyInjection\Loader\Configurator\env;

return static function (FrameworkConfig $framework): void {
$framework->mailer()
->transport('main', env('MAILER_DSN'))
->transport('alternative', env('MAILER_DSN_IMPORTANT'))
;
};
return App::config([
'framework' => [
'mailer' => [
'transports' => [
'main' => env('MAILER_DSN'),
'alternative' => env('MAILER_DSN_IMPORTANT'),
]
]
]
]);

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[Cache Warmup] 2025-11-28T07:54:09+00:00 [critical] Uncaught Error: Class "App" not found

By default the first transport is used. The other transports can be selected by
adding an ``X-Transport`` header (which Mailer will remove automatically from
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