Title: Post SMTP Plugin
Last modified: September 15, 2022

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# Post SMTP Plugin

 *  Resolved [mark46](https://wordpress.org/support/users/mark46/)
 * (@mark46)
 * [3 years, 8 months ago](https://wordpress.org/support/topic/post-smtp-plugin/)
 * I have a woocommerce site that is using Post SMTP plugin. When a customer places
   a order the email confirmations for the customer is sent but the order confirmation
   that I would receive to let me know a order was placed isn’t working. The error
   code is “Request failed; Mailbox unavailable”. I know this error doesn’t tell
   much but I can’t understand why the customer email is being sent but not the 
   site owner confirmation email telling the owner that the order was placed by 
   the customer.

Viewing 4 replies - 1 through 4 (of 4 total)

 *  Plugin Support [M Haseeb](https://wordpress.org/support/users/haseeb0001/)
 * (@haseeb0001)
 * [3 years, 8 months ago](https://wordpress.org/support/topic/post-smtp-plugin/#post-16016581)
 * Hi [@mark46](https://wordpress.org/support/users/mark46/)
 * Hope you are doing good.
 * Let me know which mailing socket you are using with post SMTP.
 * Share the Diagnostic test report of Post SMTP.
 * Thanks
 *  Thread Starter [mark46](https://wordpress.org/support/users/mark46/)
 * (@mark46)
 * [3 years, 8 months ago](https://wordpress.org/support/topic/post-smtp-plugin/#post-16016990)
 * It is port 587 now, I tried port25 because I read somewhere about the port 25.
   However it is set back to 587. It’s not letting me post the diagnostic test for
   some reason in the WYSIWYG.
 *  Plugin Support [M Haseeb](https://wordpress.org/support/users/haseeb0001/)
 * (@haseeb0001)
 * [3 years, 8 months ago](https://wordpress.org/support/topic/post-smtp-plugin/#post-16026771)
 * [@mark46](https://wordpress.org/support/users/mark46/)
 * For the Diagnostic report try to put it into Notepad and share it via we transfer
   link here and mailing socket I mean which mailing service are you using with 
   Post SMTP? like Gmail, Office 365 or server email etc.
 * Thanks
 *  Plugin Support [M Haseeb](https://wordpress.org/support/users/haseeb0001/)
 * (@haseeb0001)
 * [3 years, 7 months ago](https://wordpress.org/support/topic/post-smtp-plugin/#post-16177275)
 * We haven’t heard from you so we’re going to mark this thread as resolved. Feel
   free to open a new one if you need it.

Viewing 4 replies - 1 through 4 (of 4 total)

The topic ‘Post SMTP Plugin’ 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/)

 * 4 replies
 * 2 participants
 * Last reply from: [M Haseeb](https://wordpress.org/support/users/haseeb0001/)
 * Last activity: [3 years, 7 months ago](https://wordpress.org/support/topic/post-smtp-plugin/#post-16177275)
 * Status: resolved