Title: API Docs Last modified: May 31, 2018 --- # API Docs * [useStrict](https://wordpress.org/support/users/usestrict/) * (@usestrict) * [8 years ago](https://wordpress.org/support/topic/api-docs-2/) * Hi there, * I’m the developer of bbpress Notify (No-Spam) plugin, and in it I hook into PHPMailer to add attachments (inline or otherwise). As you replace PHPMailer with Zend, how can I hook into your code to add those attachments? Do you have some documentation I can refer to? * Cheers, Vinny Viewing 6 replies - 1 through 6 (of 6 total) * [yehudah](https://wordpress.org/support/users/yehudah/) * (@yehudah) * [8 years ago](https://wordpress.org/support/topic/api-docs-2/#post-10346670) * Hi * Nice to meet 🙂 * Why you need to hook phpmailer ? * Thread Starter [useStrict](https://wordpress.org/support/users/usestrict/) * (@usestrict) * [8 years ago](https://wordpress.org/support/topic/api-docs-2/#post-10346705) * My plugin sends out notifications of new bbPress topics/replies, and if there are inline images, it converts them to CID sources with `Content-disposition: inline` headers. I do this because some email clients don’t like external images and block them. * It’s pretty low level message manipulation, and it assumes that PHPMailer is still available. When using Postman SMTP, the messages go out without the images. Reading your readme.txt explains why – you replace PHPMailer with Zend. * So in order for my plugin to play nicely with yours, I need to find a way to attach the images to the message. * Cheers, Vinny * [yehudah](https://wordpress.org/support/users/yehudah/) * (@yehudah) * [8 years ago](https://wordpress.org/support/topic/api-docs-2/#post-10349388) * Hi [@usestrict](https://wordpress.org/support/users/usestrict/) * I have added the `phpmailer_init` hook to the class doing all the setup in my plugin and added the same methods you need. * My file and the relevant methods are located here: `/post-smtp/Postman/Postman- Mail/PostmanMessage.php` * In case it doesn’t work, just update me. * Please download the dev version here: [https://downloads.wordpress.org/plugin/post-smtp.zip](https://downloads.wordpress.org/plugin/post-smtp.zip) * Thread Starter [useStrict](https://wordpress.org/support/users/usestrict/) * (@usestrict) * [8 years ago](https://wordpress.org/support/topic/api-docs-2/#post-10349495) * Thanks! Much appreciated! I’ll let you know if everything is working well. * Cheers, Vinny * [yehudah](https://wordpress.org/support/users/yehudah/) * (@yehudah) * [8 years ago](https://wordpress.org/support/topic/api-docs-2/#post-10363076) * [@usestrict](https://wordpress.org/support/users/usestrict/) * Any news? * Thread Starter [useStrict](https://wordpress.org/support/users/usestrict/) * (@usestrict) * [8 years ago](https://wordpress.org/support/topic/api-docs-2/#post-10363113) * Hi [@yehudah](https://wordpress.org/support/users/yehudah/), * The hook exists and my code is calling `->addEmbeddedImage()`, but the images aren’t attached to the message. * Also, I get the following errors: * ``` [04-Jun-2018 21:10:20 UTC] PHP Warning: strpos() expects parameter 1 to be string, array given in /Volumes/Sites/wordpress_plugins/wp_unittest/wordpress/wp-content/plugins/post-smtp/Postman/Postman-Mail/mailgun/vendor/mailgun/mailgun-php/src/Mailgun/Api/Message.php on line 132 [04-Jun-2018 21:10:20 UTC] PHP Warning: fopen() expects parameter 1 to be a valid path, array given in /Volumes/Sites/wordpress_plugins/wp_unittest/wordpress/wp-content/plugins/post-smtp/Postman/Postman-Mail/mailgun/vendor/mailgun/mailgun-php/src/Mailgun/Api/Message.php on line 136 [04-Jun-2018 21:10:20 UTC] PHP Warning: strpos() expects parameter 1 to be string, array given in /Volumes/Sites/wordpress_plugins/wp_unittest/wordpress/wp-content/plugins/post-smtp/Postman/Postman-Mail/mailgun/vendor/mailgun/mailgun-php/src/Mailgun/Api/Message.php on line 132 [04-Jun-2018 21:10:20 UTC] PHP Warning: fopen() expects parameter 1 to be a valid path, array given in /Volumes/Sites/wordpress_plugins/wp_unittest/wordpress/wp-content/plugins/post-smtp/Postman/Postman-Mail/mailgun/vendor/mailgun/mailgun-php/src/Mailgun/Api/Message.php on line 136 [04-Jun-2018 21:10:20 UTC] PHP Warning: strpos() expects parameter 1 to be string, array given in /Volumes/Sites/wordpress_plugins/wp_unittest/wordpress/wp-content/plugins/post-smtp/Postman/Postman-Mail/mailgun/vendor/mailgun/mailgun-php/src/Mailgun/Api/Message.php on line 132 [04-Jun-2018 21:10:20 UTC] PHP Warning: fopen() expects parameter 1 to be a valid path, array given in /Volumes/Sites/wordpress_plugins/wp_unittest/wordpress/wp-content/plugins/post-smtp/Postman/Postman-Mail/mailgun/vendor/mailgun/mailgun-php/src/Mailgun/Api/Message.php on line 136 [04-Jun-2018 21:10:20 UTC] PHP Warning: Cannot modify header information - headers already sent by (output started at /Volumes/Sites/wordpress_plugins/wp_unittest/wordpress/wp-content/plugins/post-smtp/Postman/Postman-Mail/mailgun/vendor/mailgun/mailgun-php/src/Mailgun/Api/Message.php:132) in /Volumes/Sites/wordpress_plugins/wp_unittest/wordpress/wp-admin/post.php on line 198 [04-Jun-2018 21:10:20 UTC] PHP Warning: Cannot modify header information - headers already sent by (output started at /Volumes/Sites/wordpress_plugins/wp_unittest/wordpress/wp-content/plugins/post-smtp/Postman/Postman-Mail/mailgun/vendor/mailgun/mailgun-php/src/Mailgun/Api/Message.php:132) in /Volumes/Sites/wordpress_plugins/wp_unittest/wordpress/wp-includes/pluggable.php on line 1216 ``` * Cheers, Vinny Viewing 6 replies - 1 through 6 (of 6 total) The topic ‘API Docs’ is closed to new replies. * ![](https://ps.w.org/post-smtp/assets/icon-128x128.gif?rev=3209655) * [Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App](https://wordpress.org/plugins/post-smtp/) * [Frequently Asked Questions](https://wordpress.org/plugins/post-smtp/#faq) * [Support Threads](https://wordpress.org/support/plugin/post-smtp/) * [Active Topics](https://wordpress.org/support/plugin/post-smtp/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/post-smtp/unresolved/) * [Reviews](https://wordpress.org/support/plugin/post-smtp/reviews/) * 6 replies * 2 participants * Last reply from: [useStrict](https://wordpress.org/support/users/usestrict/) * Last activity: [8 years ago](https://wordpress.org/support/topic/api-docs-2/#post-10363113) * Status: not resolved