Tempmails for WordPress Plugin Directory

Self-hosted. Privacy-first. Fully yours.

Tempmails turns your WordPress site into a self-hosted temporary email

service. Visitors generate a random disposable email address, receive

messages in a real-time inbox, and discard them when done — all without

leaving your site.

Unlike third-party services, Tempmails runs entirely on your own server

and IMAP mailbox. You own the data, the domain, and the brand.

🔒 No third-party email APIs

📬 Real IMAP inbox — not a simulation

🎨 Material Design 3 UI — beautiful out of the box

⚡ AJAX-powered — no page reloads

🚀 Quick Links Everything you need to get started, get help, and stay connected:

🌐 Official Website — tempmails.cv — docs,

roadmap, and addon announcements

🎬 Installation Tutorial — Watch the step-by-step video guide below

📺 YouTube Channel — NeoSmartApps on YouTube

— tutorials, walkthroughs, and new release demos

☕ Support the Project — Buy us a coffee via PayPal

— Tempmails is free forever; your support keeps development alive

🖥️ Need Hosting? — Tempmails works best on a VPS or shared host with

catch-all IMAP support. We recommend Hostinger

(affiliate link — we earn a small commission at no extra cost to you)

🎬 Watch: Full Installation Tutorial

Core Features 📨 Email Engine

IMAP Email Fetching — connects to any catch-all IMAP mailbox

Auto Email Generation — random disposable addresses on your own domains

Real-time Inbox — AJAX-powered message viewer with configurable

auto-refresh

Attachment Support — download files with 40+ allowed extensions

🎨 Design & UI

Material Design 3 UI — modern, responsive inbox with Inter & Poppins fonts

White-labeled — fully rebrandable, no third-party branding in the UI

Design Panel — live color picker and label customization in admin

🛡️ Privacy & Data

Soft Delete — messages are never hard-deleted; safe for compliance

Cookie-based sessions — no user accounts or registration required

Zero external data transmission — all data stays on your server

⚙️ WordPress Native

Uses WP database, cron, options, nonces, and security APIs throughout

Settings API compliant admin panel

Full i18n/l10n support with .pot file included

Shortcode Place the inbox anywhere on your site with one shortcode:

[tempmails_inbox]

This renders the full inbox UI — email generation, copy button,

auto-refresh, message list, and message viewer modal.

Addon Ecosystem Tempmails Core is frozen infrastructure. All new functionality is

delivered via addons using a documented, stable hook system — your site

never breaks on Core updates.

Available addon hooks cover: email generation, message routing, inbox

access control, multi-domain support, billing integration, and more.

See the Hooks section below for the full reference.

Privacy Tempmails stores temporary email addresses in browser cookies to

maintain inbox sessions between page loads. No personal data is collected,

stored against user accounts, or transmitted to any external service.

See External Services below for details on the optional GitHub

ecosystem feed.

Hooks Tempmails exposes a complete hook system for addon developers. All hooks

below are stable and frozen — they will not be renamed, removed, or

have their signatures changed in any minor version.

Action Hooks

tempmails_loaded — Core fully initialized; safe for addon bootstrap

tempmails_core_ready — fires after DB integrity check; passes Core

version string

tempmails_activated — fires on plugin activation; safe for addon setup

tempmails_deactivated — fires on plugin deactivation

tempmails_email_generated — new address generated; params: $email,

$ip

tempmails_inbox_accessed — user opened inbox; params: $email, $ip

tempmails_message_received — new message stored; params: $message_id,

$to_address

tempmails_message_marked_seen — message read; params: $message_id

tempmails_message_deleted — soft delete triggered; params: $message_id,

$email

tempmails_cleanup_completed — cron cleanup finished; params:

$deleted_count

tempmails_fetch_completed — fetch cycle finished; params: $results

array

Filter Hooks

tempmails_registered_addons — register your addon for the Addons admin

page

tempmails_generated_email — modify a generated address before returning

it

tempmails_available_domains — modify the domain list available for

generation

tempmails_can_fetch_messages — allow/block a fetch cycle; params:

$bool, $engine

tempmails_can_process_message — allow/block a single message; params:

$bool, $message

tempmails_can_store_message — allow/block DB insert; params: $bool,

$data

tempmails_can_read_inbox — allow/block inbox access; params: $bool,

$email

tempmails_message_content — filter body before display; params:

$content, $message_id

tempmails_default_settings — modify default option values on activation

tempmails_inbox_attributes — modify shortcode default attributes

tempmails_admin_dashboard_stats — extend dashboard stat cards

tempmails_settings_tabs — add custom tabs to the Settings page

External Services Ecosystem Feed (Optional — Default On) Tempmails fetches a public JSON file from GitHub to display addon and

ecosystem information inside the WordPress admin panel.

What this connection does:

Fires only when viewing Tempmails admin pages

Retrieves only public, non-personal JSON content

Transmits no user data, site URL, or any identifiable information

Results are cached locally for 1 hour to minimize requests

Remote endpoint:

https://raw.githubusercontent.com/ubermensch-site/tempmails-ecosystem/main/ecosystem.json

Service provider: GitHub

Privacy policy: https://docs.github.com/en/site-policy/privacy-policies/github-general-privacy-statement

To disable this connection entirely, uncheck Ecosystem Feed under

Tempmails → Settings → General. Hardcoded fallback content is shown

instead — no requests are made.

Google Fonts The frontend inbox loads the Inter and Poppins typefaces and the

Material Symbols icon font from Google Fonts CDN.

What this connection does:

Fires only on pages where [tempmails_inbox] is rendered

Transmits the visitor’s IP address to Google as part of a standard font

request

Service provider: Google Fonts

Privacy policy: https://developers.google.com/fonts/faq/privacy

To avoid this (e.g. for GDPR compliance), dequeue tempmails-google-fonts

and load self-hosted font copies instead.

Developers This section documents internal implementation details, security practices,

and notes for addon developers.

Security Hardening Log All security changes are tracked here for auditing purposes.

2026-04-04 — Security Review Pass (v1.0.7 patch)

class-core.php — ajax_delete_message(): $_POST['message_id']

was wp_unslash()-ed but not sanitized, with a phpcs:ignore

suppression comment masking the warning. Now wrapped with

sanitize_text_field( wp_unslash( … ) ). Suppression comment removed.

2026-04-02 — Security Review Pass (v1.0.7 patch)

class-design.php — Removed raw <style> echo from render_page().

Static CSS moved to assets/css/admin.css.

class-design.php — inject_css_variables() refactored: replaced

echo “…” with wp_add_inline_style('tempmails-admin', ...).

All $v() return values now pass through esc_attr().

class-design.php — inject_frontend_css_variables() refactored:

all CSS values escaped with esc_attr(), wp_strip_all_tags() applied.

class-design.php — wp_footer fallback replaced raw echo '<style>'

with a dummy registered style handle.

class-tempmails-shortcodes.php — Inline <script> replaced with

wp_add_inline_script(‘tempmails-frontend’, …).

class-ecosystem.php — Inline <script> replaced with

wp_add_inline_script(‘tempmails-admin’, …).

class-core.php — ajax_mark_seen(): sanitized with

sanitize_text_field( wp_unslash( … ) ).

class-admin.php — save_settings(): Raw $_POST replaced with

$clean_post = array_map(‘sanitize_text_field’, wp_unslash($_POST)).

class-email-generator.php — get_emails(): Cookie data sanitized

with array_values(array_filter(array_map('sanitize_email', $raw))).

Addon Development Notes Hook Stability Guarantee

All hooks listed in the == Hooks == section are frozen. Signatures will

not change in any 1.x release. Breaking changes will only occur in a major

version bump with a migration guide.

$clean_post in save_settings hooks

As of the 2026-04-02 security patch, both tempmails_before_save_settings

and tempmails_before_save_imap_settings receive a sanitized copy of

$_POST. If your addon previously relied on raw values via these hooks,

retrieve those fields directly from $_POST with appropriate sanitization.

CSS Variable Injection

inject_css_variables() now attaches inline CSS to the `tempmails-admin`

style handle. If your addon dequeues tempmails-admin, Design color

variables will not be applied on admin pages.

inject_frontend_css_variables() uses a priority waterfall:

1. Attaches to tempmails-frontend if registered/enqueued

2. Falls back to tempmails-frontend-css

3. Registers a dummy handle tempmails-design-vars in wp_footer at

priority 1

File Structure tempmails/

├── assets/

│ ├── css/

│ │ ├── admin.css

│ │ ├── frontend.css

│ │ └── ecosystem.css

│ └── js/

│ ├── admin.js

│ ├── admin-design.js

│ └── frontend.js

├── core/

│ ├── class-core.php

│ ├── class-admin.php

│ ├── class-design.php

│ ├── class-ecosystem.php

│ ├── class-email-generator.php

│ └── class-addon-handler.php

├── includes/

│ ├── class-tempmails-shortcodes.php

│ ├── class-tempmails-database.php

│ ├── class-tempmails-settings.php

│ ├── class-tempmails-imap.php

│ └── class-tempmails-fetcher.php

└── tempmails.php