SMTP Mailer Plugin for Craft CMS

We've built this plugin for internal use, but we've decided to make it public

SMTP Mailer provides additional options to send out mails compared to Pixel&Tonic`s Contact Form. However you have to programatically set up everything. There is no Control Panel interface for this plugin.

Make sure to carefully read the instructions before you use this plugin.

Instructions

Add these lines to your .env file

MAILER_HOST=smtp.example.com
MAILER_USERNAME=[email protected]
MAILER_PASSWORD=********
MAILER_PORT=465
MAILER_ENCRYPTION=ssl
MAILER_DELIVERY_PROTOCOL=smtp

Obviously these are just placeholders, you need your own smtp configuration to make this work.

Create a _mails directory under your templates Notice the underscore > _

templates/_mails

Create a email_template_config.php file inside your config folder > config/email_template_config.php and copy the contents of this file into that

How do these templates work?

templates/_mails contains your email templates. These will be sent out to the email addresses. The files inside this directory will get the variables you will set up on the contact pages.

Example:

You have a job application form (e.g. here: templates/pages/contact.twig). You might want to get the applicants age

If you use this code:

<label for="job">How old are you</label>
<input id="job" type="text" name="applicant_age">

Then you can use this variable inside your email template (That you might set up here templates/_mails/job_contact.twig) like this:

<p>Applicant's age: {{ applicant_age }}</p>

This is depends on what you've entered into your input field's name attribute. (name="variable_name")

Where will we send the email?

First of all, it is important to know that the email template is not just a file name but an identifier as well. So if you have a templates/_mails/job_contact.twig file, your ID for this template is job_contact

On you contact page you will need to place this row

{{ craft.email.templateInput('job_contact') | raw }}

This will tell 2 things to this plugin

• We have a templates/_mails/job_contact.twig file
• We have a job_contact key inside the config/email_template_config.php file

Now this file is important. Here you actually refer to the functions specified in PHPmailer. You use keys to refer to the methods, and values to fill out the data. I left an example in this repo: https://raw.githubusercontent.com/cstudiossro/smtpmailer/main/email_template_config.php

How to change the subject

Put these line into your email_template_config.php file

    'test_template' => [
        //...
        'Subject' => 'Test Subject',
        //...
    ],

How to use google recaptcha?

Add this line to the .env file (you will need the recaptcha secret):

RECAPTCHA_SECRET=""

Put these line into your email_template_config.php file

    'test_template' => [
        //...
        'recaptcha' => [
            'setExpectedHostname' => ['example.com'],
            'setExpectedAction' => ['homepage'],
            'setScoreThreshold' => ['0.5']
        ],
        //...
    ],

After that, place this line into your form

<div class="g-recaptcha" data-sitekey="{{ gRecaptchaSitekey }}"></div>

What happens if recaptcha could not authenticate the user

The page will return you to the email form, but you can retrieve the recaptcha error codes as follows:

{% set recaptchaErrorCodeString = craft.app.session.getFlash('recaptchaErrorCodes',null, true) $}

Error codes are separated by pipe, e.g.: missing-input-secret|missing-input-response
In twig 2 and 3, you can split it with this: https://twig.symfony.com/doc/3.x/filters/split.html

{% set recaptchaErrorCodes = recaptchaErrorCodeString|split('|') %}

List of all the possible recaptcha error codes: https://developers.google.com/recaptcha/docs/verify#error_code_reference

How to generate a contact form?

<form action="/email/send" method="post">

    {# necessary fields #}
    {{ csrfInput() }}
    {{ redirectInput('/') }}
    {{ craft.email.templateInput('test_template') | raw }}

    {# custom fields #}
    <label for="">What's your name?</label>
    <input name="name" type="text">

    <label for="">Which job are you applying for?</label>
    <input name="job" type="text">

    <label for="">What's your email address</label>
    <input name="email" type="text">

    <button>Send</button>
</form>

How to generate email template?

<p>You've received a new job application:</p>
<p>Name: {{ name }}</p>
<p>Job in question: {{ job }}</p>
<p>Applicant's email address: {{ email }}</p>

How to use sendmail (instead of SMTP)?

Go into the .env file and copy the delivery_protocol line here:

MAILER_DELIVERY_PROTOCOL=sendmail

How to send static files:

In your email_template_config.php file:

'addAttachment' => [
    Craft::getAlias('@webroot/photo.jpg')
],

The @webroot alias points towards your /web folder

@webroot provides an absolute file system path, while @web only gives you a relative web path

How to send files from a form?

<label for="">File 1</label>
<input type="file" name="attachments[]">

<label for="">File 2</label>
<input type="file" name="attachments[]">

How do I send an autoreply email?

Autoreply will go to the person who filled out your contact form

Paste these lines into your email_template_config.php, inside the template you want to have autoreply

'test_template' => [
    //...
    'replyConfig' => [
        'setFrom' => [
            //$mail->setFrom('[email protected]', 'From');
            ['[email protected]', 'From']
        ],
        //The name of the input field that stores the mail address to which the mail will go
        'setReplyInputName' => ['applicantEmailAddress'],
        //The name of the template, put it here: templates/_mails/
        'setReplyTemplate' => ['test_reply_template'],
    ],
    //...
]

On the contact form:

<label for="">My email address</label>
<input name="applicantEmailAddress" type="text">