Question 1

How to send HTML emails with Symfony Mailer?

Accepted Answer

Use the Email class's html() method for static HTML or TemplatedEmail with Twig templates for dynamic content. For Twig, install symfony/twig-bridge and configure BodyRenderer as shown in the README to render templates with context data.

Question 2

Symfony Mailer vs Swift Mailer: which is better?

Accepted Answer

Symfony Mailer is the modern replacement in the Symfony ecosystem, offering better integration and event support. If you're on Symfony or starting new, use Mailer; for legacy Swift Mailer projects, evaluate migration based on needed features like Twig templating.

Question 3

How to configure Gmail SMTP with Symfony Mailer?

Accepted Answer

Use a DSN like 'smtp://username:password@smtp.gmail.com:587' with TLS encryption. Refer to Symfony's documentation for provider-specific settings, as the README mentions external resources for advanced configurations.

Question 4

Does Symfony Mailer support email attachments?

Accepted Answer

Yes, the Email class provides attach() methods for files from paths or streams. You can specify MIME types and filenames, making it flexible for adding documents or images to emails.

Question 5

How to test emails in development with Symfony Mailer?

Accepted Answer

Use the NullTransport to prevent actual sending or mock transports in tests. Symfony's testing utilities allow inspecting sent emails, and the event system can be leveraged for custom validation in integration tests.

Question 6

Symfony Mailer or PHPMailer for a simple project?

Accepted Answer

For very simple projects, PHPMailer might be easier due to its procedural style and widespread tutorials. Symfony Mailer is better if you need Symfony integration, event hooks, or Twig templates, but adds complexity for basic use.

Symfony Mailer

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