Title: [NSFW] Problem with Sendiblue plugin Last modified: May 27, 2023 --- # [NSFW] Problem with Sendiblue plugin * Resolved [killex69](https://wordpress.org/support/users/killex69/) * (@killex69) * [3 years ago](https://wordpress.org/support/topic/problem-with-sendiblue-plugin/) * You cannot use Sendinblue SMTP now because wp_mail has been declared by another process or plugin. * this warning goes away if i disable extendify Viewing 4 replies - 1 through 4 (of 4 total) * Plugin Contributor [Chris Lubkert](https://wordpress.org/support/users/clubkert/) * (@clubkert) * [3 years ago](https://wordpress.org/support/topic/problem-with-sendiblue-plugin/#post-16773371) * Hi there, * We can investigate this. Can you please help with three things: 1. Which version of Extendify are you using? 2. Which Sendinblue plugin are you using? Is this this one? [https://wordpress.org/plugins/mailin/](https://wordpress.org/plugins/mailin/) 3. What other plugins do you have active on the site? * Thanks! - This reply was modified 3 years ago by [Chris Lubkert](https://wordpress.org/support/users/clubkert/). Reason: Added additional question * [snortonag](https://wordpress.org/support/users/snortonag/) * (@snortonag) * [3 years ago](https://wordpress.org/support/topic/problem-with-sendiblue-plugin/#post-16783080) * Can confirm this also affects other SMTP plugins like FluentSMTP. * Current installed version: 1.5.0 * The conflict notification references the wp-pluggable.php file. * This issue surfaced last month for me when performing routine maintenance/plugin updates on 4/30/2023. * The issue is resolved by downgrading to 1.5.0 * Plugin Contributor [Chris Lubkert](https://wordpress.org/support/users/clubkert/) * (@clubkert) * [2 years, 11 months ago](https://wordpress.org/support/topic/problem-with-sendiblue-plugin/#post-16825548) * Hi [@snortonag](https://wordpress.org/support/users/snortonag/) and [@killex69](https://wordpress.org/support/users/killex69/), * We have added a fix for this issue in Extendify version 1.7. Can you please update and let us know if this issue persists? * Thanks for reporting this! * [snortonag](https://wordpress.org/support/users/snortonag/) * (@snortonag) * [2 years, 11 months ago](https://wordpress.org/support/topic/problem-with-sendiblue-plugin/#post-16825560) * [@clubkert](https://wordpress.org/support/users/clubkert/), Updated and conflict appears resolved. Thank you! Viewing 4 replies - 1 through 4 (of 4 total) The topic ‘[NSFW] Problem with Sendiblue plugin’ is closed to new replies. * ![](https://ps.w.org/extendify/assets/icon-256x256.png?rev=2653704) * [Extendify](https://wordpress.org/plugins/extendify/) * [Frequently Asked Questions](https://wordpress.org/plugins/extendify/#faq) * [Support Threads](https://wordpress.org/support/plugin/extendify/) * [Active Topics](https://wordpress.org/support/plugin/extendify/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/extendify/unresolved/) * [Reviews](https://wordpress.org/support/plugin/extendify/reviews/) * 4 replies * 3 participants * Last reply from: [snortonag](https://wordpress.org/support/users/snortonag/) * Last activity: [2 years, 11 months ago](https://wordpress.org/support/topic/problem-with-sendiblue-plugin/#post-16825560) * Status: resolved