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Vendor sympress
Package mailer
Short Description Core Symfony Mailer powered WordPress mail plugin for the SymPress kernel.
License GPL-2.0-or-later

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Informations about the package mailer

SymPress Mailer

Core Symfony Mailer powered WordPress plugin for the SymPress kernel.

Installation

Install the package through Composer in a SymPress WordPress project:

The SymPress kernel discovers the SymPress\Mailer\MailerBundle bundle from composer.json and loads mailer/mailer.php as the WordPress plugin entry.

Feature Surface

Replaces wp_mail() through the WordPress pre_wp_mail filter.
Uses symfony/mailer transports and DSNs, including SMTP, sendmail, native mail, failover DSNs and optional Symfony provider bridges.
Supports one primary connection, From email/name policy, return-path handling, TLS settings and test email delivery.
Stores settings in the shared sympress_mailer_settings option so extension packages can add their own feature state.
Exposes SymPress\Mailer\Application\MailerInterface and SymPress\Mailer\Message\EmailBodyProcessorInterface as extension points.

Pro Extension

sympress/mailer-pro lives in packages/mailer-pro and builds on this package like a premium extension. The Pro package replaces MailerInterface with a logging/routing/queue-aware implementation and replaces the body processor with open/click tracking.

Provider Strategy

The core package depends on symfony/mailer and accepts any valid Symfony Mailer DSN. Dedicated providers such as SendGrid, Mailgun, Postmark, Brevo, Amazon SES, Gmail, Microsoft Graph, Mailjet, MailerSend, Mailtrap and Resend are enabled by installing the matching Symfony bridge listed in composer.json suggestions.

Assets

Admin assets are built with Symfony Webpack Encore:

The PHP asset provider loads assets/entrypoints.json when it exists and falls back to the legacy assets/admin.css and assets/admin.js files until a build is available.

Documentation

Documentation index
Configuration
Development

Quality Checks

All versions of mailer with dependencies

PHP Build Version

Package Version

Version v0.1.5 Release 09. Oct 2026
create-project require 0 people chose require and
0 people chose create-project.

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Download latest version of mailer from vendor sympress

Requires php Version ^8.5
ext-json Version *
symfony/http-client Version ^8.1
symfony/mailer Version ^8.1
symfony/mime Version ^8.1
sympress/assets Version ^1.2.1
sympress/kernel Version ^1.1.1
ext-openssl Version *

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