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This article assumes that you have already configured a mailbox using a Krystal cPanel account. To carry out the instructions in this article you will need the Manual Settings for your mailbox. You can obtain these in cPanel > Email Accounts by clicking on the More button next to your mailbox details, and selecting Configure Email Client.
There are now two options for setting up your email client. Option 1 is preferred, but does have some prerequisites.
Option 1 - Use mail.your.domain for inbound and outbound mail server (IMAP Hostname and SMTP Hostname)
Your domain’s A record must be pointing to your Krystal hosting server. If your domain is registered with Krystal then this is likely the case.
You must have SSL enabled for the domain. Once your domain is correctly pointing to Krystal a free LetsEncrypt certificate will be issued automatically.
If you meet these requirements then you can use the format mail.your.domain for the inbound (IMAP Hostname) and outbound (SMTP Hostname) mail servers in the instructions below e.g. if your domain is example.co.uk then you would use mail.example.co.uk as the inbound and outbound mail server names.
This option has the benefit of meaning that should you change hosting servers at any point you won’t need to re-configure any email clients. Once the DNS has updated for your new server A record the clients will continue to be able to send and receive email.
Option 2 - use the server hostname for inbound and outbound mail server
This option has no prerequisites. However, you should be aware that if you use this method, and at a later date change hosting servers you will need to re-configure any email clients.
If you are a reseller this would also impact all your client accounts.
Start Outlook 2013 from the Windows Start Button, or by opening it from the Applications folder or Desktop.
Click the File (1) menu item, then on the next screen, click the Add Account (2) button.
On the following screen, choose Manual setup or additional server types. The automatic method that Outlook provides gets so many things wrong, it's quicker to simply set it up manually. Click Next.
On the Choose Service panel, select POP or IMAP and click Next.
Click More Settings... button.
On the Internet E-mail Settings dialog box, click the Outgoing Server tab at the top. Tick the My outgoing server (SMTP) requires authentication check box. Do NOT click OK yet!
Select TLS from both drop down boxes marked. Be sure to enter INBOX in the Root folder path box. The remaining default settings are as shown. Click OK.
Back on the Add Account panel, click the Next button.
You should now see a brief test take place, which should be successful. Just click Close, and then Finish. That's it!