Title: Block Temporary Email Author: IsTempMail Published: Enero 15, 2017 Last modified: Agosto 12, 2025 --- Search plugins ![](https://ps.w.org/block-temporary-email/assets/icon-256x256.png?rev=1577080) # Block Temporary Email By [IsTempMail](https://profiles.wordpress.org/istempmail/) [Download](https://downloads.wordpress.org/plugin/block-temporary-email.1.7.5.zip) * [Details](https://ceb.wordpress.org/plugins/block-temporary-email/#description) * [Reviews](https://ceb.wordpress.org/plugins/block-temporary-email/#reviews) * [Installation](https://ceb.wordpress.org/plugins/block-temporary-email/#installation) * [Development](https://ceb.wordpress.org/plugins/block-temporary-email/#developers) [Support](https://wordpress.org/support/plugin/block-temporary-email/) ## Description This plugin will verify every email address submitted by users. It’ll automatically detect and block disposable, temporary email addresses. It’ll give a nice warning message when users are signing up, logging in, or changing email to a temporary email. The plugin checks the domain name using a service named [IsTempMail](https://www.istempmail.com/?ref=wp). If a domain name is blocked, it will be stored into a local blacklist. You can also manage your own local whitelist and blacklist to allow or disallow certain domains. The plugin integrates with the WordPress built-in function `is_email()`. It works seamlessly with other plugins including WooCommerce, Contact Form 7, Gravity Form, Jetpack/Grunion contact forms, Kadence Blocks Forms as well as other formbuilders and ecommerce plugins and WordPress’ own registration form. ## Screenshots * [[ * Disposable email address blocked during sign up * [[ * Temporary email address blocked when updating profile * [[ * Settings to manage your own blacklist and whitelist ## Installation Sign up and get your API token at [IsTempMail](https://www.istempmail.com/sign-up?ref=wp). Upload the plugin to your blog, then click Activate it under Plugins > Installed Plugins. Then enter the API token at your WordPress Dashboard > Settings > IsTempMail. ## FAQ ### Do you send my user email addresses to other servers? No, we don’t. The plugin will only send the domain part of email address to validate. ### Is the plugin free? Yes, the plugin is free to use. IsTempMail also offers a free plan that will be sufficient for most blogs. You will be notified when you use more credits than included in the free plan. ### What happens if the service is down? A downtime is very unlikely, the IsTempMail service has outstanding availability of 99.99% over the last 6 months. But the plugin was developed to be stable in the unlikely event of a temporary downtime. It will continue to work, validating emails using your local blacklist and whitelist. Your users will be able to sign up, log in and comment on your blog just fine. ### What happens to existing users with fake email address Existing users registered with fake email addresses won’t be able to log in to your blog when the plugin is activated. Be prepared for users contacting you regarding this topic. Usually people who used a disposable email address won’t come back to your website though. ## Reviews ![](https://secure.gravatar.com/avatar/81604bc8917eef05719b8ba7dafcc600d2d2eb2cc1185eb7e7b31de98021db4c? s=60&d=retro&r=g) ### 󠀁[Great light plugin with great support!](https://wordpress.org/support/topic/great-light-plugin-with-great-support/)󠁿 [Erik Molenaar](https://profiles.wordpress.org/erikmolenaar/) Disyembre 4, 2025 i opted for this plugin because it is lightweight, simple, works great en the devs really listen to feedback! ![](https://secure.gravatar.com/avatar/887bfeb7625297518b01323c714094f77ef6eba5e2a7350469f32b1d8529bb62? s=60&d=retro&r=g) ### 󠀁[fantastic plugin](https://wordpress.org/support/topic/fantastic-plugin-1828/)󠁿 [diazcomunicacion](https://profiles.wordpress.org/diazcomunicacion/) Enero 26, 2023 1 reply I tried all kinds of methods… 3 plugins… Edit wp-config.php and I even asked Chat GPT to give me a snippet but the solution was this incredible plugin, which worked perfectly with WOO, tks a lot! ![](https://secure.gravatar.com/avatar/244e93e61a31e9fb340b503a9406811b330d53ee8596c85037237b38a3eff0c5? s=60&d=retro&r=g) ### 󠀁[Excellent Plugin + Top Support](https://wordpress.org/support/topic/excellent-plugin-top-support-5/)󠁿 [paolurso](https://profiles.wordpress.org/paolurso/) Mayo 10, 2022 2 replies This plugin is outstanding, it does exactly what I expected. I also had a problem and the support was very fast and efficient. Highly recommended. ![](https://secure.gravatar.com/avatar/11db9d5d8ccd7c81deb4b056d05cdab931b98968d397690fc7a105316f1c6c1b? s=60&d=retro&r=g) ### 󠀁[A Big Fail](https://wordpress.org/support/topic/a-big-fail/)󠁿 [antonv](https://profiles.wordpress.org/antonv/) Mayo 21, 2021 offers of disposal emails grow faster than the plugin can keep up with. From the first three disposables offered by google, one was blocked. A BIG FAIL ![](https://secure.gravatar.com/avatar/59bbeac3334b4f1ad466fc9914c05733a1591c7423e400e6b2c2d91a35a413b0? s=60&d=retro&r=g) ### 󠀁[Great plugin! Still works](https://wordpress.org/support/topic/great-plugin-still-works-2/)󠁿 [Soren Singh](https://profiles.wordpress.org/sorens/) Enero 7, 2021 The plugin works like charm, I tested it with different temp domains and it blocked all of em. Recommended! ![](https://secure.gravatar.com/avatar/2e6bc949c45e13d8c7478a5e69e1b154db66c4622732ae307d01a5cd808e832c? s=60&d=retro&r=g) ### 󠀁[Wonderful plugin](https://wordpress.org/support/topic/wonderful-plugin-438/)󠁿 [whateverfree2](https://profiles.wordpress.org/whateverfree2/) Pebrero 4, 2019 Seem there is only this type of plugin in WP repository, I am looking for this plugin for a long time. Thanks so much [ Read all 8 reviews ](https://wordpress.org/support/plugin/block-temporary-email/reviews/) ## Contributors & Developers “Block Temporary Email” is open source software. The following people have contributed to this plugin. Contributors * [ IsTempMail ](https://profiles.wordpress.org/istempmail/) [Translate “Block Temporary Email” into your language.](https://translate.wordpress.org/projects/wp-plugins/block-temporary-email) ### Interested in development? [Browse the code](https://plugins.trac.wordpress.org/browser/block-temporary-email/), check out the [SVN repository](https://plugins.svn.wordpress.org/block-temporary-email/), or subscribe to the [development log](https://plugins.trac.wordpress.org/log/block-temporary-email/) by [RSS](https://plugins.trac.wordpress.org/log/block-temporary-email/?limit=100&mode=stop_on_copy&format=rss). ## Changelog #### 1.7.5 Add filter to allow customizing message when a disposable email was found Tested with WordPress 6.8.2 #### 1.7.4 Tested with WordPress 6.6 #### 1.7.3 Tested with WordPress 6.4.3 #### 1.7.2 Improve support for forms and advanced forms built with Kadence Blocks #### 1.7.1 Add support for advanced forms built with Kadence Blocks #### 1.7 Add support for forms built with Kadence Blocks Tested with WordPress 6.4.2 #### 1.6.3 Tested with WordPress 6.4.1 #### 1.6.2 Tested with WordPress 6.3.2 #### 1.6.1 Tested with WordPress 6.3.1 #### 1.6 Fix a bug during plugin uninstallation Add option to disable validating logins ( premium) #### 1.5.2 Tested with WordPress 6.2 #### 1.5.1 Tested with WordPress 6.1.1 Updated a typo and readme #### 1.5 You can now disable email checking on a certain POST payload e.g. add _xoo_el_form =login to stop checking email on login popup. #### 1.4 * Update API request format. * Separate IsTempMail blacklist and your own local blacklist. #### 1.3 In prior versions, it’ll check all emails passed to `is_email()` function. You can now change the hook behavior to check only emails submitted via browsers (POST/ GET values). #### 1.2 If a domain name has no MX record and doesn’t resolve to any IP address, it will be marked as “unresolvable” and the email will be considered as invalid. It helps in preventing some typos like gmail.con or gmail.comm. #### 1.1 Add local blacklist and whitelist. #### 1.0 First version ## Meta * Version **1.7.5** * Last updated **8 bulan ago** * Active installations **600+** * WordPress version ** 2.9 or higher ** * Tested up to **6.8.5** * Language * [English (US)](https://wordpress.org/plugins/block-temporary-email/) * Tags * [check email](https://ceb.wordpress.org/plugins/tags/check-email/)[disposable email](https://ceb.wordpress.org/plugins/tags/disposable-email/) [fake email](https://ceb.wordpress.org/plugins/tags/fake-email/)[temporary email](https://ceb.wordpress.org/plugins/tags/temporary-email/) [validate email](https://ceb.wordpress.org/plugins/tags/validate-email/) * [Advanced View](https://ceb.wordpress.org/plugins/block-temporary-email/advanced/) ## Ratings 4.5 out of 5 stars. * [ 7 5-star reviews ](https://wordpress.org/support/plugin/block-temporary-email/reviews/?filter=5) * [ 0 4-star reviews ](https://wordpress.org/support/plugin/block-temporary-email/reviews/?filter=4) * [ 0 3-star reviews ](https://wordpress.org/support/plugin/block-temporary-email/reviews/?filter=3) * [ 0 2-star reviews ](https://wordpress.org/support/plugin/block-temporary-email/reviews/?filter=2) * [ 1 1-star review ](https://wordpress.org/support/plugin/block-temporary-email/reviews/?filter=1) [Your review](https://wordpress.org/support/plugin/block-temporary-email/reviews/#new-post) [See all reviews](https://wordpress.org/support/plugin/block-temporary-email/reviews/) ## Contributors * [ IsTempMail ](https://profiles.wordpress.org/istempmail/) ## Support Got something to say? Need help? [View support forum](https://wordpress.org/support/plugin/block-temporary-email/)