- Plesk Onyx for Linux
Note: This article has the reference to the issue with the fix available:
"Under certain circumstances, the administrator’s webmail address was displayed incorrectly in WordPress Toolkit."
After installing a new WordPress instance via Application Vault and registering it in WordPress Toolkit e-mail of another customer is shown in WordPress Preferences of the WordPress instance.
This is WordPress Toolkit bug #EXTWPTOOLK-490 which has been fixed in WordPress Toolkit 2.1 .
Check How to update Plesk extensions article and make sure Wordpress Toolkit is updated to the latest version.