Title: Lettr Ìtumọ̀ Yorùbá: &#8211; Email API
Author: vojtechj
Published: <strong>Èbìbí  19, 2026</strong>
Last modified: Òkúdù 1, 2026

---

Ṣàwárí àwọn plugin

![](https://s.w.org/plugins/geopattern-icon/lettr.svg)

# Lettr Ìtumọ̀ Yorùbá: – Email API

 Láti ọwọ́ [vojtechj](https://profiles.wordpress.org/vojtechj/)

[Ṣe ìgbàsílẹ̀](https://downloads.wordpress.org/plugin/lettr.1.2.0.zip)

 * [Àwọn àlàyé](https://yor.wordpress.org/plugins/lettr/#description)
 * [Àwọn àgbéyẹ̀wò](https://yor.wordpress.org/plugins/lettr/#reviews)
 *  [Ìgbéwọlẹ̀](https://yor.wordpress.org/plugins/lettr/#installation)
 * [Ìdàgbàsókè](https://yor.wordpress.org/plugins/lettr/#developers)

 [Ìrànlọ́wọ́](https://wordpress.org/support/plugin/lettr/)

## Àpèjúwe

Send transactional and marketing emails from your WordPress site using the [Lettr](https://lettr.com)
email API. Lettr replaces the default WordPress email system with a reliable, developer-
friendly API that delivers emails to inboxes — not spam folders.

#### Why Lettr?

 * **Reliable email delivery** — Built on battle-tested infrastructure with SPF,
   DKIM, and DMARC authentication out of the box.
 * **Simple setup** — Connect your WordPress site with a single API key. No SMTP
   configuration needed.
 * **Transactional email at scale** — Send password resets, order confirmations,
   notifications, and more through the Lettr email API.
 * **Real-time tracking** — Monitor opens, clicks, bounces, and deliverability from
   the Lettr dashboard.
 * **Templates & personalization** — Use the Lettr drag-and-drop editor and merge
   tags for dynamic content.
 * **Developer-first** — RESTful API, detailed documentation, and SDKs for PHP, 
   Node.js, Python, Go, Rust, Java, and Laravel.

#### How it works

This plugin overrides the default WordPress `wp_mail()` function and routes all 
outgoing emails through the Lettr API. This means every email your site sends — 
including emails from WooCommerce, contact form plugins, and any other plugin — 
is delivered through Lettr automatically.

#### Links

 * [Lettr Website](https://lettr.com)
 * [Documentation](https://docs.lettr.com)
 * [API Reference](https://docs.lettr.com/api-reference/introduction)

### External services

This plugin connects to the Lettr API at `app.lettr.com` to deliver email on behalf
of your WordPress site. Each time `wp_mail()` is invoked, the plugin sends the following
data to Lettr over HTTPS so that Lettr can process and deliver the message:

 * The configured sender email address and name
 * Recipient, CC, BCC, and Reply-To addresses
 * The email subject, HTML and/or plain text body, and any attachments
 * Any custom email headers, tags, or metadata supplied by the calling code
 * Your Lettr API key (sent as a Bearer token in the `Authorization` header for 
   authentication)

The plugin also calls `app.lettr.com/api/auth/check` to validate the API key when
you save it on the settings screen.

This service is provided by Lettr. By using this plugin you agree to LettrÌtumọ̀
Yorùbá: ’s terms and acknowledge their privacy practices:

 * Terms of Service: [https://lettr.com/terms](https://lettr.com/terms)
 * Privacy Policy: [https://lettr.com/privacy-policy](https://lettr.com/privacy-policy)

## Ìgbéwọlẹ̀

 1. Upload the plugin to `/wp-content/plugins/lettr` or install via the WordPress plugin
    installer.
 2. Activate the plugin through the **Plugins** menu.
 3. Go to **Settings  Lettr** and enter your API key from the [Lettr dashboard](https://lettr.com).
 4. Configure your sender name and email address.
 5. Send a test email to verify everything is working.

## FAQ

### Do I need a Lettr account?

Yes. Sign up for free at [lettr.com](https://lettr.com) to get your API key.

### Does this work with WooCommerce?

Yes. Lettr handles all emails sent via the standard WordPress `wp_mail()` function,
which includes WooCommerce order confirmations, shipping notifications, and customer
emails.

### Do I need to configure SMTP?

No. Lettr uses a REST API instead of SMTP, which means there are no ports to open
or SMTP credentials to manage.

### Where can I find my API key?

Log in to your account at [lettr.com](https://lettr.com) and navigate to the API
Keys section.

## Àwọn àgbéyẹ̀wò

Kò sí àwọn àgbéyẹ̀wò fún plugin yìí.

## Àwọn Olùkópa & Olùgbéejáde

“Lettr Ìtumọ̀ Yorùbá: – Email API” jẹ́ ètò ìṣàmúlò orísun ṣíṣí sílẹ̀. Àwọn ènìyàn
wọ̀nyí ti ṣe ìkópa sí plugin yìí.

Àwọn Olùkópa

 *   [ vojtechj ](https://profiles.wordpress.org/vojtechj/)

[Túmọ̀ “Lettr Ìtumọ̀ Yorùbá: – Email API” sí èdè rẹ.](https://translate.wordpress.org/projects/wp-plugins/lettr)

### Ṣe o nífẹ̀ẹ́ sí ìdàgbàsókè?

[Ṣàwárí koodu](https://plugins.trac.wordpress.org/browser/lettr/), ṣàyẹ̀wò [ibi ìpamọ́ SVN](https://plugins.svn.wordpress.org/lettr/),
tàbí ṣe àgbékalẹ̀ sí [àkọsílẹ̀ ìdàgbàsókè](https://plugins.trac.wordpress.org/log/lettr/)
nípasẹ̀ [RSS](https://plugins.trac.wordpress.org/log/lettr/?limit=100&mode=stop_on_copy&format=rss).

## Àkọsílẹ̀ àwọn àyípadà

#### 1.2.0

 * Add campaigns API client methods (list, show, events, send, schedule, unschedule).

#### 1.1.0

 * Add audience API client methods (lists, contacts, topics, properties, segments).
 * Bump tested-up-to to WordPress 7.0.

#### 1.0.0

 * Initial release.

## Àkójọpọ̀ Meta

 *  Ẹ̀yà **1.2.0**
 *  Ìgbàgbọ́hùn tó kẹ́yìn **ọjọ́ 1 sẹ́yìn**
 *  Àwọn ìgbéwọlẹ̀ tó ṣiṣẹ́ **Tó kéré sí 10**
 *  Ẹ̀yà WordPress ** 5.8 tàbí ju bẹ́ẹ̀ lọ **
 *  Dánwò dé **7.0**
 *  Ẹ̀yà PHP ** 7.2 tàbí ju bẹ́ẹ̀ lọ **
 *  Èdè
 * [English (US)](https://wordpress.org/plugins/lettr/)
 * Àwọn àmì
 * [email](https://yor.wordpress.org/plugins/tags/email/)[Email API](https://yor.wordpress.org/plugins/tags/email-api/)
   [smtp](https://yor.wordpress.org/plugins/tags/smtp/)[transactional email](https://yor.wordpress.org/plugins/tags/transactional-email/)
 *  [Ìwòye Tó Péye](https://yor.wordpress.org/plugins/lettr/advanced/)

## Àwọn ìbò

Kò sí ìwádìí tí a tíì fi ránṣẹ́.

[Your review](https://wordpress.org/support/plugin/lettr/reviews/#new-post)

[See all reviews](https://wordpress.org/support/plugin/lettr/reviews/)

## Àwọn Olùkópa

 *   [ vojtechj ](https://profiles.wordpress.org/vojtechj/)

## Ìrànlọ́wọ́

Nǹkan wà tí o fẹ́ sọ? Ṣé o nílò ìrànlọ́wọ́?

 [Wo àpéjọ ìrànlọ́wọ́](https://wordpress.org/support/plugin/lettr/)