WordPress plugin to configure wp_mail() via MAILER_DSN environment variable.

Use the Composer:

composer require popartdesign/wordpress-mailer-dsn

Don't forget to activate the plugin, if you don't use the mu-plugins directory.

Define (in your .env file for example) the MAILER_DSN variable like this:

MAILER_DSN='mail://localhost'

Supported protocols:

• mail
• sendmail
• qmail
• smtp
• smtps

Additional configuration could be applied via query string:

MAILER_DSN='mail://localhost?XMailer=SuperMailer&FromName=CoolSite'

PHPMailer configured by public properties, so you can use any of them. All allowed options could be found at PHPMailer Docs.

MAILER_DSN='sendmail://localhost?Sendmail=/usr/sbin/sendmail%20-oi%20-t'

MAILER_DSN='smtp://user:password@localhost?SMTPDebug=3&Timeout=1000'

MAILER_DSN='smtps://user@gmail.com:password@smtp.gmail.com:587'

Sometimes it's not convinient to configure all options by the only one MAILER_DSN variable. For example, if you want to configure DKIM, you will end with very long unreadable DSN string. In this cases you can use one of MAILER_* variables:

• MAILER_DEBUG
• MAILER_DEBUG_OUTPUT
• MAILER_FROM
• MAILER_FROM_NAME
• MAILER_SENDER
• MAILER_DKIM_PRIVATE
• MAILER_DKIM_PASSPHRASE
• MAILER_DKIM_SELECTOR
• MAILER_DKIM_IDENTITY
• MAILER_DKIM_DOMAIN
• and etc.

See source code for all available vars.

Copyright (c) Voronkovich Oleg. Distributed under the MIT.