PDF's are not being attached to emails

Hello,

Could you please clarify a few details:

- We noticed that you are also using the [e2pdf-save] shortcode. Does it still save the PDF upon submission?

- Do you have any global actions configured? https://e2pdf.com/docs/actions/global

If the PDF is being saved successfully, then the issue may be related to the email sending process or a third-party mail provider, if one is being used. Are you perhaps using any plugins that could affect email sending, such as asynchronous mailing plugins?

Could you please check whether the Optimize Email Sending option is enabled: https://wpmailsmtp.com/docs/a-complete-guide-to-miscellaneous-settings/#Optimize_Email_Sending.

If yes, please try to modify your shortcodes:

From:
[e2pdf-attachment id="4"][e2pdf-save id="4"]

To:
[e2pdf-save id="4" attachment="true"]

The issue is related to asynchronous mail sending.

By default, the [e2pdf-attachment] shortcode creates a temporary PDF when the mail action is triggered and removes it once the mail has been successfully sent.

However, when the async mail option is enabled, it initiates a separate background task and notifies Formidable Forms that the email has been sent, even though the actual sending process is still in progress. As a result, the temporary file generated during form submission is deleted before the email is actually sent - which is why the attachment is missing at the time of delivery.

When you use [e2pdf-save id="4" attachment="true"], the PDF is stored permanently on the server and used as an attachment, instead of being created temporarily. This prevents it from being deleted after the form is submitted.