Plesk Error Adding Domain: A specified logon session does not exist. It may already have been terminated

When adding a domain in Plesk the following error is displayed. Error: A specified logon session does not exist. It may already have been terminated. (Exception from HRESULT: 0x80070520) In Microsoft.Web.Administration module Exception type: System.Runtime.InteropServices.COMException at Microsoft.Web.Administration.Interop.IAppHostMethodInstance.Execute() at Microsoft.Web.Administration.BindingManager.Save() at Microsoft.Web.Administration.ServerManager.CommitChanges() at ServerManagerFactory.commit() at IISServerManager.commit(IISServerManager* ) at Commit common changes(WebServerManager::updateWebMailLinks line 2725) at updateWebMailLinks()(WebServerManager::updateWebMailLinks line […]

SpamExperts MX Records

3essentials fully supports SpamExperts Inbound mail filtering.  SpamExperts is included by default in select plans and is available as an add-on to any service we provide. SpamExperts MX Records are listed below: EXAMPLE-DOMAIN.COM MX preference = 30, mail exchanger = EXAMPLE-DOMAIN.COM MX preference = 10, mail exchanger = EXAMPLE-DOMAIN.COM MX preference = 20, […]

DNN installation options

3essentials customers have two options when choosing to install DotNetNuke Software (DNN); You can install DNN yourself (self-installation) or ask 3Essentials to perform the install. DNN Self Installation Installing From Plesk Control Panel Watch Video Installing on Windows Directly Obtain the DNN install package from and follow their installation instructions. 3essentials Free DNN installation The 3essentials […]

Which DNS Name Servers to use? 3essentials provides two slave name servers.  Your cPanel, or Plesk server will act as the Master name server where you add, edit and delete specific DNS records. Set your domain registration (point your domain) to use these salve name servers listed above. After the domain is added to cPanel, or Plesk you need […]

How do I migrate email between servers using IMAP

Requirements To move email between servers using IMAP, both of your servers must support the IMAP email protocol. All current 3Essentials hosting plans should support the IMAP protocol. The password for the email account you are trying to migrate. An IMAP-capable local email client. Most email clients like Outlook, Apple Mail, and Thunderbird support IMAP […]

How to access your cloud server with Root or Admin Credentials

Windows Cloud Servers HOW TO START RDP ON A PC (XP/VISTA/7/8) – From your Windows 7 desktop, Click the Start button – Click the “Run” menu option – type ‘mstsc’ (without the ‘ quotes) and press ENTER on your keyboard – Enter your Server Name, username and password (listed above).  Note:  You may be prompted […]

Setting file/folder permissions from Plesk control panel for Windows

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What is a HOSTS file and how do you edit it?

The HOSTS file on your Windows PC or MAC is used by the operating system as a place to lookup hostnames for IP addresses before checking DNS.  Let’s explain:When you need to go to, your computer needs to actually “resolve” that name to an IP address… i.e., what is the IP address of the […]

How to add a DNS record in Plesk 12

Adding a DNS record in Plesk 12 can be completed in a few easy steps:1. Login to the Plesk control.2. Find the domain on which you’d like to add/alter a DNS record.3. You may need to click “Show More” button in Plesk to see the full list of options under your domain.4. Click on the […]