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Please find below our list of Email guides to help with your hosting account.

How to configure for OSX 10.13.x (High Sierra)

This article was posted in: Email

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 two options for IMAP Hostname & SMTP Hostname

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 then you would use 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.

Step 1

Start the Mail application from the Dock, or by opening it from the Applications folder.

Step 2

Select Preferences... from the Mail menu.

Step 3

In the preferences window select Accounts on the top menu followed by the + symbol in the bottom left.

Step 4

This will present you with the Choose a Mail account provider... Choose Other Mail Account... and click Continue

Step 5

Enter the requires information as follows:

  • Name : This is the name that will appear to your recipients when you send out email
  • Email Address : This should be the full mailbox address you created in cPanel
  • Password : This should be the correct password for the above mailbox

Click Sign In- will try to autodiscover your settings and fail. This is normal. It will then proceed to ask you for some additional information. See Step 6.

Step 6

With unable to autodiscover the server settings we must now provide the details. Complete the page as follows:

  • Email Address : This should be the full mailbox address you created in cPanel.
  • User Name : This will be the same as entered in the Email Address field.
  • Password : This should be the correct password for the above mailbox as set in cPanel.
  • Account Type : IMAP (POP3 not recommended)
  • Incoming Mail Server : This should be set to your server hostname. This is sent in the welcome email and may be different to the one shown in our example.
  • Outgoing Mail Server : This will be the same as the Incoming Mail Server field.

Click Sign In and will attempt to connect once more.

Note: If fails to connect please check your internet connection is working and the server details entered are correct. Contact support if you are unsure.

Step 7

Once has connected it will prompt what services you wish to use. Untick Notes to avoid complications with iCloud syncing and click Done.

Step 8

You will be returned the accounts screen we saw earlier. Your new email account should already be pre-selected with the Account Information screen showing. However, if you have more than one email account within mail, or if your new email account hasn’t pre-selected, select it from the left menu first. Once selected, click Server Settings in the menu bar.

Ensure that this screen is setup as above, although note that the User Name and Host Name fields will differ from that here as they will be showing the information we entered earlier. Once you’ve completed the fields correctly click the Save button followed by the Advanced IMAP Settings button just above the Outgoing Mail Server (SMTP) heading.

Step 9

Enter INBOX within the IMAP Path Prefix field and click OK.

Step 10

That's it. You're all setup. You may now close the Preferences windows and return to the Inbox as seen here. If you have any emails in your account they’ll begin to show. If this is a new email account then it your Inbox will be empty until you receive your first email.