Provides test helpers for Codeception when testing email functionality with Mailpit

v0.3.0 2023-11-17 20:04 UTC

This package is auto-updated.

Last update: 2024-06-20 16:03:59 UTC


Mailpit Module for the Codeception Testing Framework

This codeception module can be used to run tests against your Mailpit instance.

Mailpit was inspired by MailHog, which is not developed anymore. Because it is not a 1:1 replacement, the API changed and existing MailHog codeception modules cannot be used anymore.

This codeception module is based on oqq/codeception-email-mailhog (wich is a fork of ericmartel/codeception-email-mailhog) and brings nearly the same functionality for Mailpit as the mentioned modules did for MailHog.


Through composer, require the package:

composer req koehnlein/codeception-email-mailpit --dev

Then turn it on in your Codeception suite yaml file

class_name: FunctionalTester
        - Mailpit
            url: 'http://mailpit.dev'
            port: '8025'

Additional parameters can be fed directly to the Guzzle connection using the guzzleRequestOptions variable.

The variable deleteEmailsAfterScenario can be set to true to ensure that all emails are deleted at the end of each scenario, but it is turned off by default.

Added Methods

This Module adds a few public methods for the user, such as:


Deletes all emails in Mailpit


Fetches all email headers from Mialpit, sorts them by timestamp and assigns them to the current and unread inboxes


Filters emails to only keep those that are received by the provided address


Pops the most recent unread email and assigns it as the email to conduct tests on


Pops the next attachment and assigns it as the attachment to conduct tests on

Example Test

Here is a simple scenario where we test the content of an email. For a detailed list of all available test methods, please refer to the [Codeception Email Testing Framework][CodeceptionEmailTestingFramework].

$I = new FunctionalTester($scenario);
$I->am('a member');
$I->wantTo('request a reset password link');

// First, remove all existing emails in the Mailpit inbox

// Implementation is up to the user, use this as an example

// Query Mailpit and fetch all available emails

// This is optional, but will filter the emails in case you're sending multiple emails or use the BCC field

// A new email should be available and it should be unread

// Set the next unread email as the email to perform operations on

// After opening the only available email, the unread inbox should be empty

// Validate the content of the opened email, all of these operations are performed on the same email
$I->seeInOpenedEmailSubject('Your Password Reset Link');
$I->seeInOpenedEmailTextBody('Follow this link to reset your password');
$I->seeInOpenedEmailHtmlBody('<a href="https://www.example.org/">Follow this link to reset your password</a>');

// Validate if email has attachments

// Open next attachment

// Validate metadata of the attachment

Migrate from MailHog Codeception Module

In case you want to switch from codeception-email-mailhog to this module, you need to follow these small steps:

Remove old MailHog module

Depending on which fork of codeception-email-mailhog you have installed, you can uninstall it with

composer remove oqq/codeception-email-mailhog --dev


composer remove ericmartal/codeception-email-mailhog --dev

or maybe any other package name of the fork, you use.

Add new Mailpit module instead

composer req koehnlein/codeception-email-mailpit --dev

Update Codeception configuration:

Change module name in Codeception configuration file(s) from MailHog to Mailpit.

Refactor your Cests:

  • Search for all $I->...EmailBody(...) occurrences and refactor to $I->...EmailTextBody(...) and/or $I->...EmailHtmlBody(...)
  • The name in $I->canSeeInOpenedEmailSender is now encapsulated in double quotes. So if you used $I->canSeeInOpenedEmailSender('My Name <me@example.org>') before replace it with $I->canSeeInOpenedEmailSender('"My Name" <me@example.org>');