- Plesk 12.5 for Windows
Emails are not delivered from Wordpress contact form to Plesk mailbox email@example.com that is setup in the WordPress Contact Module Settings. Emails to external mail servers are sent successfully from the Wordpress contact form.
There are no any MailEnable logs in
%plesk_dir%Mail Servers\\Mail Enable\\Logging\\SMTP
related to firstname.lastname@example.org
The header of the email sent from a WordPress contact form to an external email contains the following:
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=elasticemail.com;
There is Elastic Email plugin enabled in WordPress
Elastic Email plugin does not allow emails to be sent from the WordPress form to Plesk mail server. This plugin reconfigures the wp_mail() function to send email using HTTPS (via Elasticemail API) instead of SMTP.
Disable Elastic Plugin or configure it properly so that it does not reconfigures wp_mail() function for a WordPress contact form.