# Cannot send email **URL:** \ **Category:** Product Support\ **Created:** [December 14, 2016, 6:37am UTC](https://forum.mautic.org/t/cannot-send-email/6851 "2016-12-14T06:37:42Z")\ **Posts on this page:** 3\ **Page:** 1

**Author:** ![Intensas](https://avatars.discourse-cdn.com/v4/letter/i/8e7dd6/32.png) [@Intensas](https://forum.mautic.org/u/Intensas)\ **Post date:** [December 14, 2016, 6:37am UTC](https://forum.mautic.org/t/cannot-send-email/6851/1 "2016-12-14T06:37:42Z")

Hi, I am trying to use Mandrill to send email from my mautic. API is added and connection is verified. But sending test mail throws error. “Mandrill error Log data: \<\< Invalid API key !! Mandrill error (code: 0)\<\< Invalid API key” Any help is highly appreciated. Thank you! ---

**Author:** ![superbiche](https://avatars.discourse-cdn.com/v4/letter/s/e68b1a/32.png) [@superbiche](https://forum.mautic.org/u/superbiche)\ **Post date:** [April 29, 2017, 10:39pm UTC](https://forum.mautic.org/t/cannot-send-email/6851/3 "2017-04-29T22:39:18Z")

Hi there, I’m having exactly the same issue and same error message. Mandrill’s API Logs are not showing any error, it seems Mautic is just trying to post to users/ping.json then … nothing 😕 My sending domain is valid, I tried 3 different API keys without IP restriction, tried to use the SMTP username, the account’s email, the user\_id returned by the API, clearing the cache in each step… I’m now using the “Other SMTP” configuration with Mandrill’s SMTP settings, which are working fine, but I’d like to be able to use Mandrill API capabilities. Any help available to tackle this one? Thanks in advance. Cheers,