Symptoms
This issue can occur in the following conditions:1. Mailname_1 is created on domain domain_1 with autoresponder
2. Mailname_2 is created on domain domain_2 with alias mailname_1 and without autoresponder
Cause
Plesk 7.6.1 can not handle such configuration properly.Resolution
This problem has been solved in Plesk version 8.2. Consider upgrading Plesk to the latest version