Hi, We have a problem with sending out mails with a php -script for mailadressess with [email protected] as www.samedomain.com. The customer is using a different mailsolution than ISPConfig. During the creation of the site the Local/External Mailserver was set to Local Mailserver in ISP Site/Options and we changed it afterwards, but no change. Looking at /var/log/mail.log confirms that the relay is local and ISPConfig / Postfix is not doing a MX check for this domain. What can we do to fix this ? We are running IspConfig 2.2.19 and thank You for a great hosting platform. BR, Tom