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Override default mailer URL in Symfony

By : Kyler Blue
Date : August 02 2020, 11:00 AM
I hope this helps you . You're using your Gmail credentials as SMTP server. You can't and shouldn't send from any other email address through your Gmail credentials. Even if you were using another SMTP server that allows any From address, you shouldn't use an email address that's not authenticated in your SMTP service as the From address, because your email would probably never see the light of an inbox.
An option would be to set the Reply-To address to your user's email address by using $message->setReplyTo($mail);. That way if you hit the reply button in your mailbox, the mail should be addressed to the user's email address.
code :

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Symfony won't override mailer factories setting for "dev" environment

By : user2552295
Date : March 29 2020, 07:55 AM
I wish this helpful for you I'm a bit of a Symfony noob, but I'm stuck on something I'm sure should work. I am using the "dev" environment on localhost, and am trying to test an action where an email is sent out to the user. I have the delivery_strategy set to none for "dev" but Symfony still tries to use the settings for "all". Here is my factories.yml: , Try to specify the class as well, this works for me:
code :
      delivery_strategy: none
        class:  Swift_NullTransport

Symfony 3 override default form rendering

By : Jamie
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further I can't answer to the reasons why extra content is being rendered. From the base Twig template form_div_layout.html.twig, there is nothing that indicates the behavior that is happening:
code :
{%- block form_start -%}
    {% set method = method|upper %}
    {%- if method in ["GET", "POST"] -%}
        {% set form_method = method %}
    {%- else -%}
        {% set form_method = "POST" %}
    {%- endif -%}
    <form name="{{ name }}" method="{{ form_method|lower }}"{% if action != '' %} action="{{ action }}"{% endif %}{% for attrname, attrvalue in attr %} {{ attrname }}="{{ attrvalue }}"{% endfor %}{% if multipart %} enctype="multipart/form-data"{% endif %}>
    {%- if form_method != method -%}
        <input type="hidden" name="_method" value="{{ method }}" />
    {%- endif -%}
{%- endblock form_start -%}
class MyTwigExtension extends \Twig_Extension {

    public function getFunctions() {
        return array(
            new \Twig_SimpleFunction('custom_form_start', [$this, 'customFormStart']),
            new \Twig_SimpleFunction('custom_form_end', [$this, 'customFormEnd']),
            new \Twig_SimpleFunction('multi_select', [$this, 'multiSelect']),
            new \Twig_SimpleFunction('multi_select_js', [$this, 'multiSelectJS'])
 . . .
public function customFormStart(\Symfony\Component\Form\FormView $formView) {
    $formData = $formView->vars;

    $html = '<form name="' . $formData['name'] . '" method="' . $formData['method'] . '"'
        . ' action="' . $formData['action'] . '" class="form-horizontal">';
    return $html;
public function customFormEnd(\Symfony\Component\Form\FormView $formView) {
    $formData = $formView->vars;
    $token = $formView->children['_token']->vars;
    $html = '<input id="' . $token['id'] .'" name="' . $token['full_name']
        . '" value="' . $token['value'] . '" type="hidden">';
    return $html;

symfony 4 twig override default variable

By : Godwin Anasigre
Date : March 29 2020, 07:55 AM
it helps some times I have set a default variable in my view (Twig template). But when I try to override it inside controller it is not happening. This is my view, , The problem here is that twig compiles your code as follows:
code :
if ((((array_key_exists("has_header", $context)) ? (_twig_default_filter((isset($context["has_header"]) || array_key_exists("has_header", $context) ? $context["has_header"] : (function () { throw new Twig_Error_Runtime('Variable "has_header" does not exist.', 2, $this->source); })()), true)) : (true)) == true)) {
function _twig_default_filter($value, $default = '') {
  if (twig_test_empty($value)) {
    return $default;
  return $value;
function twig_test_empty($value) {
  if ($value instanceof Countable) {
    return 0 == count($value);
  return '' === $value || false === $value || null === $value || array() === $value;
{% if has_header is defined and has_header %}

How to tag emails with symfony/mailer and symfony/mailgun-mailer provider

By : user3428841
Date : March 29 2020, 07:55 AM
it fixes the issue I find the solution and want to share it with other developers. I add "X-Mailgun-Tag" header and it works.
code :
$message = (new TemplatedEmail())
      ->from(new NamedAddress($senderEmail, $senderName))
      ->to(new NamedAddress($receiverEmail, $receiverName))

$message->getHeaders()->addTextHeader('X-Mailgun-Tag', $tag1);
$message->getHeaders()->addTextHeader('X-Mailgun-Tag', $tag2);

Understanding Symfony/mailer: why can't I found Symfony\Contracts\HttpClient\HttpClientInterface in Vendors?

By : user3487938
Date : March 29 2020, 07:55 AM
around this issue The reason why you are unable to find HttpClientInterface, is that you do not require any library that provides a symfony/http-client-implementation.
To allow a transport to use symfony/http-client you will need to explicitly install and configure it.
code :
composer require symfony/http-client
# config/packages/framework.yaml
    # ...
        max_host_connections: 10
            headers: { 'X-Powered-By': 'ACME App' }
            max_redirects: 7
namespace Foo;

use Non\Existing\NamespaceClass;

class Bar
    public function __construct()
        echo NamespaceClass::class;

new \Foo\Bar(); //Non\Existing\NamespaceClass
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