Title: PHP Fatal error: require_once(): Failed opening required ‘sendgrid/sendgrid-php
Last modified: July 4, 2019

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# PHP Fatal error: require_once(): Failed opening required ‘sendgrid/sendgrid-php

 *  [innonirali](https://wordpress.org/support/users/innonirali/)
 * (@innonirali)
 * [6 years, 11 months ago](https://wordpress.org/support/topic/php-fatal-error-require_once-failed-opening-required-sendgrid-sendgrid-php/)
 * [@yehudah](https://wordpress.org/support/users/yehudah/)
 * I am getting following error:
 * When wp_mail function executed:
 * PHP Fatal error: require_once(): Failed opening required ‘sendgrid/sendgrid-php.
   php’ (include_path=’.:/usr/share/php’) in /wp-content/plugins/post-smtp/Postman/
   Postman-Mail/PostmanSendGridMailEngine.php on line 5, referer: ….
 * Can you please help me out to resolve this. I have already tried following solutions:
 * 1. Directory Permission 777
    2. Reinstall plugin
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fphp-fatal-error-require_once-failed-opening-required-sendgrid-sendgrid-php%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 1 replies (of 1 total)

 *  [yehudah](https://wordpress.org/support/users/yehudah/)
 * (@yehudah)
 * [6 years, 11 months ago](https://wordpress.org/support/topic/php-fatal-error-require_once-failed-opening-required-sendgrid-sendgrid-php/#post-11700108)
 * Hi,
 * Remove the folder from FTP and try again.
    Something is get corrupted in your
   side (hosting)

Viewing 1 replies (of 1 total)

The topic ‘PHP Fatal error: require_once(): Failed opening required ‘sendgrid/sendgrid-
php’ is closed to new replies.

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 * 1 reply
 * 2 participants
 * Last reply from: [yehudah](https://wordpress.org/support/users/yehudah/)
 * Last activity: [6 years, 11 months ago](https://wordpress.org/support/topic/php-fatal-error-require_once-failed-opening-required-sendgrid-sendgrid-php/#post-11700108)
 * Status: not resolved