Symptoms
1. In Plesk create domain template with log rotation enabled.2. Do not specify e-mail address in log rotation where rotated logs should be sent.
3. Try to create creating a new domain over using Plesk RPC-API using domain template. You will get the following answer response from Plesk:
<?xml version="1.0"?>
<packet Version="1.4.2.0">
<domain>
<add>
<result>
<status>
error
</status>
<errcode>
2204
</errcode>
<errtext>
Unable to update hosting preferences. Unable to create system user: email address is invalid.
</errtext>
</result>
</add>
</domain>
</packet>
Anyway domain is being created but without hosting.Domain is then created, but hosting configuration isn’t complete.