README

The validemail extension extends TYPO3's standard email validation with an improved TLD validation. It adds a check for the domain, so that at least one dot is present after the @-sign.

How to test in your setup

When doing a manual test, the browser validation will prevent you from submitting the form, if the email address is invalid.

Bots just send the form data to the action URL of the form tag, and then the \TYPO3\CMS\Core\Utility\GeneralUtility::validEmail method is usually used to validate the email address. This method uses egulias/email-validator which does not check if the domain contains a dot.

Warning:

Do not install this package if you send emails to local addresses or in an intranet environment that do not have a dot in the domain part.

Test on your own

If you want to test this behavior yourself, deactivate JavaScript in your browser, which will also disable the browser validation. Then submit your form with something like "test@example" - this will be accepted by the validEmail check without this extension.

See these issues for additional information:

• https://forge.typo3.org/issues/102629
• egulias/EmailValidator#359

Installation

Via Composer (recommended)

composer require andreaskiessling/validemail

Testing (local Docker matrix)

This repository contains a local Docker-based test matrix to run the unit tests against multiple TYPO3 and PHP versions.

Prerequisites

• Docker with docker compose
• GNU Make (optional, but convenient)

Build / rebuild the PHP test runner images

Build all images (uses cache where possible):

make build

Force a clean rebuild (helpful after changing docker/php-cli/Dockerfile):

make rebuild

Run the full test matrix

make test-matrix

Each matrix entry runs in its own sandbox under:

• .Build/matrix/<profile>/

This keeps your working tree clean (no vendor/ or composer.lock changes in the repo root).

Run only a single matrix entry (or a subset)

You can filter matrix entries by substring:

make test-matrix-filter FILTER=t14 
make test-matrix-filter FILTER=13.4:php84:t13

Tip: To see all available entries, open scripts/test-matrix.sh and look at the MATRIX=(...) list.

Note about TYPO3 v11 and Composer security advisories

TYPO3 v11 is EOL and flagged by Packagist security advisories. For local matrix testing, the script disables Composer's "block insecure" mechanism inside the TYPO3 v11 sandbox only. This is done purely to keep legacy test coverage; it is not a recommendation for production usage.

This extension will hopefully be obsolete once egulias/EmailValidator#359 is solved.