SendStack

Free WordPress SMTP & email deliverability plugin. All features free, no paid tier.

by X1techs · github.com/x1techs/sendstack · website

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Install

No release zip yet. The repository archive installs, but the folder name will carry the branch suffix and updates will not flow:

wp plugin install https://github.com/x1techs/sendstack/archive/refs/heads/develop.zip

Readme github.com/x1techs/sendstack ↗

Reliable email delivery for WordPress.

SendStack replaces the default WordPress PHPMailer with a modern delivery layer: multiple provider support (SMTP, Gmail, SendGrid, Mailgun), full email logging, automatic failover, and alert notifications.

Requirements

Requirement	Version
WordPress	6.2+
PHP	7.4+
MySQL	5.7+ / MariaDB 10.3+

Dev Setup

# Clone
git clone https://github.com/x1techs/sendstack.git
cd sendstack

# Start environment and install everything
make setup

# Visit the local site
open https://sendstack.ddev.site

Running Tests

make test           # all suites
make test-unit      # unit only (no DB required)
make test-integration  # requires DDEV + live WP

Linting

make lint    # PHPCS + PHPStan
make fix     # auto-fix PHPCS violations

Contributing

Please read CONTRIBUTING.md before opening a pull request.