Title: Mail7 Email Validation
Author: denm
Published: <strong>30. augusta 2026</strong>
Last modified: 30. augusta 2026

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Vyhľadať plugin

![](https://ps.w.org/mail7-email-validation/assets/banner-772x250.png?rev=3672808)

![](https://ps.w.org/mail7-email-validation/assets/icon-256x256.png?rev=3672808)

# Mail7 Email Validation

 Od [denm](https://profiles.wordpress.org/denm/)

[Stiahnuť](https://downloads.wordpress.org/plugin/mail7-email-validation.1.0.0.zip)

 * [Podrobnosti](https://sk.wordpress.org/plugins/mail7-email-validation/#description)
 * [Recenzie](https://sk.wordpress.org/plugins/mail7-email-validation/#reviews)
 *  [Inštalácia](https://sk.wordpress.org/plugins/mail7-email-validation/#installation)
 * [Vývoj](https://sk.wordpress.org/plugins/mail7-email-validation/#developers)

 [Podpora](https://wordpress.org/support/plugin/mail7-email-validation/)

## Popis

Mail7 Email Validation checks email addresses in real time as they are entered, 
using the [Mail7](https://mail7.net/) API. It stops fake and undeliverable addresses
from getting into your user base, comments and form submissions – which means fewer
bounces, less spam and cleaner lists.

**Three verdicts, not two.** Real mail servers do not always give a straight answer:
catch-all domains, greylisting and disposable providers make some addresses genuinely
unverifiable. Mail7 returns **Valid**, **Not Valid**, or **Unknown**, and this plugin**
does not block Unknown addresses by default**, so you never turn away a real person
over an address that simply could not be confirmed.

#### What it checks

 * Syntax / format
 * Domain MX records (can the domain receive mail at all)
 * Live SMTP mailbox check
 * Disposable / temporary address detection

#### Where it plugs in

 * WordPress user registration
 * Comment author emails
 * Contact Form 7 email fields
 * WPForms email fields

#### Reliable by default

 * Results are cached, so the same address is never re-checked (fast, and no wasted
   API calls).
 * If the Mail7 API is briefly unreachable, the plugin fails open – your forms keep
   working, no one is ever locked out by an outage.

#### API key

Works out of the box on Mail7’s free anonymous tier (rate-limited). For higher volume,
paste a Mail7 API key in the settings – get one at [mail7.net](https://mail7.net/).

### External services

This plugin sends each submitted email address to the Mail7 API (https://mail7.net/
api/validate-single) to determine whether it is deliverable. Only the email address
being validated is sent. See the Mail7 [Privacy Policy](https://mail7.net/privacy-policy.html)
and [Terms of Service](https://mail7.net/terms-of-service.html).

## Obrázky

[⌊A fake address is caught right in the form: Contact Form 7 submission stopped,
the visitor sees exactly which field to fix.⌉⌊A fake address is caught right in 
the form: Contact Form 7 submission stopped, the visitor sees exactly which field
to fix.⌉[

A fake address is caught right in the form: Contact Form 7 submission stopped, the
visitor sees exactly which field to fix.

[⌊User registration with an undeliverable address is rejected before the account
is created.⌉⌊User registration with an undeliverable address is rejected before 
the account is created.⌉[

User registration with an undeliverable address is rejected before the account is
created.

[⌊The settings: one optional API key and six switches. Blocking unverifiable (Unknown)
addresses is off by default on purpose.⌉⌊The settings: one optional API key and 
six switches. Blocking unverifiable (Unknown) addresses is off by default on purpose
.⌉[

The settings: one optional API key and six switches. Blocking unverifiable (Unknown)
addresses is off by default on purpose.

## Inštalácia

 1. Upload the plugin to `/wp-content/plugins/`, or install it from the Plugins screen.
 2. Activate it.
 3. Go to **Settings -> Mail7 Validation** to choose where validation runs and, optionally,
    add your API key.

## Časté otázky

### Do I need a paid account?

No. It works on the free anonymous tier. A Mail7 API key raises the rate limit and
volume.

### Will it block real users?

Not for unverifiable addresses. By default only addresses Mail7 reports as **Not
Valid** (do not exist / no mail server) are blocked. „Unknown“ addresses are allowed.
You can optionally block Unknown too, but it is off by default on purpose.

### What happens if Mail7 is down?

The plugin fails open: submissions are allowed. Validation never becomes a single
point of failure for your forms.

## Recenzie

Pre tento plugin nie sú žiadne recenzie.

## Prispievatelia a vývojári

“Mail7 Email Validation” je softvér s otvoreným zdrojovým kódom. Do tohto pluginu
prispeli nasledujúci ľudia.

Prispievatelia

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

[Preložiť „Mail7 Email Validation“ do vašho jazyka.](https://translate.wordpress.org/projects/wp-plugins/mail7-email-validation)

### Máte záujem o vývoj?

[ Prehľadávajte zdrojový kód](https://plugins.trac.wordpress.org/browser/mail7-email-validation/),
preskúmajte [SVN repozitár](https://plugins.svn.wordpress.org/mail7-email-validation/),
alebo sa prihláste na odber [vývojárskeho logu](https://plugins.trac.wordpress.org/log/mail7-email-validation/)
cez [RSS](https://plugins.trac.wordpress.org/log/mail7-email-validation/?limit=100&mode=stop_on_copy&format=rss).

## Zoznam zmien

#### 1.0.0

 * Initial release: registration, comments, Contact Form 7 and WPForms validation
   with honest Valid / Not Valid / Unknown handling, result caching and fail-open
   behavior.

## Meta

 *  Verzia **1.0.0**
 *  Posledná aktualizácia **Pred 1 týždeň**
 *  Aktívne inštalácie **Menej než 10**
 *  Verzia WordPress ** 5.0 alebo novšia **
 *  Testované do verzie **7.1**
 *  Verzia PHP ** 7.2 alebo novšia **
 *  Jazyk
 * [English (US)](https://wordpress.org/plugins/mail7-email-validation/)
 * Značky
 * [contact form 7](https://sk.wordpress.org/plugins/tags/contact-form-7/)[email validation](https://sk.wordpress.org/plugins/tags/email-validation/)
   [email verification](https://sk.wordpress.org/plugins/tags/email-verification/)
   [registration](https://sk.wordpress.org/plugins/tags/registration/)[spam](https://sk.wordpress.org/plugins/tags/spam/)
 *  [Rozšírené zobrazenie](https://sk.wordpress.org/plugins/mail7-email-validation/advanced/)

## Hodnotenia

Zatiaľ neboli odoslané žiadne recenzie.

[Your review](https://wordpress.org/support/plugin/mail7-email-validation/reviews/#new-post)

[See all reviews](https://wordpress.org/support/plugin/mail7-email-validation/reviews/)

## Prispievatelia

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

## Podpora

Máte čo povedať? Potrebujete pomoc?

 [Zobraziť fórum podpory](https://wordpress.org/support/plugin/mail7-email-validation/)