Email Template Customizer

Overview

Email Template Customizer changes how WooCommerce's own transactional emails look: the logo, colours, typeface, text size, header alignment, which content blocks appear and in what order, and optional custom CSS. It works through WooCommerce's email hooks and options, so it applies to WooCommerce's templates and to a theme's template overrides.

The module sends no email of its own apart from the test email an administrator sends to themselves. It creates no database table.

It is a premium module. Enable it from Empora → Modules once your license includes email-customizer.

Availability

Item	Value
Module key	email-customizer
Tier	Premium — lowest plan Professional
Entitlement key	email-customizer
Enabled option	aiowc_module_enabled_email-customizer (off until enabled)
REST namespace	aiowc/v1

Settings

Stored in the bundled option row aiowc_emc_settings.

Setting	Values
Preset	classic (default), clean or bold. Choosing one sets its colours, typeface and header alignment; every field stays editable.
Colours	Header background, header text, page background, body text, accent (buttons and links), button text. Hex values.
Typeface	system, helvetica (default), georgia, verdana or mono.
Text size	12–20 px (default 15).
Header alignment	left (default), center or right.
Blocks	Intro message, order summary, addresses, button and footer — each can be switched off and reordered. Product images in the order summary can be switched off.
Button text	Up to 40 characters (default "View your order").
Footer text	Up to 200 characters.
Intro messages	One per email: processing, completed, invoice, refunded, new account and password reset. Up to 2,000 characters; limited to the HTML WordPress allows in posts.
Custom CSS	Up to 10,000 bytes, cleaned before it is saved (see below).

Logo

Upload a PNG or JPG, up to 1 MB and at least 400 px wide. The file is checked by its content, not its name. SVG is refused because many email apps do not display it. The logo is added to your media library and shows at up to 200 px wide. Removing the logo takes it out of the emails and leaves the file in the library.

Custom CSS

Custom CSS ends up inside emails your customers open, so it is cleaned by removing anything unsafe: < characters, comments, @import, expression(, behavior:, -moz-binding, javascript: and vbscript:. A url(...) is kept only for an https:// address. What the settings screen shows after saving is exactly what runs.

What changes in each email

• Logo, colours and footer text apply to every WooCommerce email.
• Typeface, text size, alignment, accent colour and custom CSS apply to HTML emails.
• Blocks — their order and on/off state — apply to customer HTML emails. Emails sent to the shop, and every plain-text email, keep WooCommerce's standard layout so no order details go missing.
• Emails with no order (new account, password reset) show the intro after the header and the button above the footer.

Preview and test email

The preview renders a chosen email exactly as WooCommerce would send it, for a sample order built in memory and never saved. Eight emails can be previewed, in HTML or plain text: processing, completed, invoice, refunded, on hold, new account, password reset, and the shop's new-order email.

The test email goes only to the signed-in administrator's own address, never to an address in the request, and is limited to 5 every 10 minutes. It is sent with WordPress's wp_mail(); if the site cannot send mail, the response says so and suggests an SMTP plugin.

REST API endpoints

All require an administrator.

Method	Path	Purpose
POST	/email-customizer/preview	Render one email (email_type, format) for a sample order.
POST	/email-customizer/send-test	Send that email to your own address.
POST	/email-customizer/logo	Upload the logo (multipart file).
DELETE	/email-customizer/logo	Remove the logo from the emails.
GET	/email-customizer/settings	Read the settings.
PUT / PATCH / POST	/email-customizer/settings	Update the settings. The logo is set only by its upload route.

Entitlement limits

The entitlement is a single on/off grant. Without email-customizer the module stays locked and WooCommerce's emails look as they did before.