# Unable to receive OTP using passwordless email provider mailgun suddenly **URL:** \ **Category:** Get Help\ **Tags:** free-trial, login-experience\ **Created:** [November 12, 2025, 10:15am UTC](https://community.auth0.com/t/unable-to-receive-otp-using-passwordless-email-provider-mailgun-suddenly/194391 "2025-11-12T10:15:22Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![aniket2](https://sea1.discourse-cdn.com/auth0/user_avatar/community.auth0.com/aniket2/32/60189_2.png) [@aniket2](https://community.auth0.com/u/aniket2)\ **Post date:** [November 12, 2025, 10:15am UTC](https://community.auth0.com/t/unable-to-receive-otp-using-passwordless-email-provider-mailgun-suddenly/194391/1 "2025-11-12T10:15:23Z")
Ready to post? 🔎Everything was working fine suddenly was not receiving otp on the mails, and in the logs two logs come for every hit one saying code/link sent second failed to send notification which is creating and issue for me can anyone help ---
**Author:** ![dawid.matuszczyk](https://sea1.discourse-cdn.com/auth0/user_avatar/community.auth0.com/dawid.matuszczyk/32/74550_2.png) [@dawid.matuszczyk](https://community.auth0.com/u/dawid.matuszczyk)\ **Post date:** [November 12, 2025, 2:23pm UTC](https://community.auth0.com/t/unable-to-receive-otp-using-passwordless-email-provider-mailgun-suddenly/194391/2 "2025-11-12T14:23:04Z")
Hi @aniket2 Welcome to the Auth0 Community! Can you try to test the integration with Mailgun? Dashboard → Branding → Email Providers and click on Send Test Email. Is it successful or does it fail? Thanks! Dawid ---
**Author:** ![system](https://global.discourse-cdn.com/auth0/original/3X/b/5/b560f266932fcce5d57f09a6595bd50518cae3f3.jpeg) [@system](https://community.auth0.com/u/system)\ **Post date:** [November 27, 2025, 4:35pm UTC](https://community.auth0.com/t/unable-to-receive-otp-using-passwordless-email-provider-mailgun-suddenly/194391/4 "2025-11-27T16:35:44Z")
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