Can someone please help me with this strange problem? We recently did a minor update on our ISPconfig 3. After the update, we found that anything we modified or newly added in ISPconfig, such as, add new email account, create a new DNS record, change user's email password or enable an vacation message etc. It will take at least 1 hour or hours to apply the changes. Does anyone has or had the same problem before? Please help! Thank you!