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This article will walk you through the steps required to setup your Krystal mailbox for IMAP access on your iPhone (iPad is very similar). This article assumes that you have already logged into your cPanel account and configured a mailbox.
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.
From the Home screen, tap the Settings icon.
Scroll down the settings creen and tap the Mail, Contacts, Calendars item.
Tap the Add Account... item.
Scroll down to the bottom of the account types, and tap Other.
Tap Add Mail Account.
Enter the initial account settings as follows:
When you are done, tap Next at the top right.
Incoming Mail Server & Outgoing Mail Server (YOU MUST COMPLETE BOTH - THIS IS NOT OPTIONAL)
If you get an error saying that your details were rejected, then type them in again, VERY CAREFULLY. You wouldn't believe how many times people ring us up only to find they are typing the wrong password or entering it incorrectly.
If you got things right, then you will see some spinning icons while iOS checks your credentials with the server, and then you will be asked to save the account. You can turn Notes off at this point as you are probably using iCloud or some other service for that. Tap Save.
Step 9 - An interlude
iOS will now dump you back at the Mail, Contacts, Calendars setup panel. So, just tap on the account you just created. This will bring you back to the account's activation panel. Just tap the account name to continue.
This will take you back to the Account panel. Scroll right to the bottom, and you should see an Advanced button - Tap it.
Step 11 - Ensuring Incoming SSL Authentication
You will now be back on the Advanced screen. Scroll to the bottom of the screen and make sure that the Use SSL toggle is turned on as shown. Also make sure that the IMAP Path Prefix is set to INBOX. The Server Port can se set to 143 or 993 - either should work fine.
Tap the Account button (top left) to return to the Account screen.
Tap the Advanced button again (this is necessary for the app to pick up the new IMAP prefix we just entered).
On the Advanced screen, you can see that iOS is using the local Drafts, Sent, Deleted, and Archive folders. You probably want to use the server based versions of these folders instead so that you can share your mailbox with other computers/devices. The method for each of the mailboxes is the same so we'll just show you how to do the Sent Mailbox here. So, tap Sent Mailbox.
Step 14 - Ensuring Outgoing SSL Authentication
Now, finally, from the Account screen, tap the OUTGOING MAIL SERVER button as shown.
This will open the SMTP panel. The PRIMARY SERVER should already show the server that you configured earlier. You only want this one server enabled. If any of the others are showing as On, then tap them and turn them Off for this account. OK, so if everything is fine, go ahead and tap your primary server as shown.
Again, check to make sure that the Use SSL toggle is turned on (as shown). The Server Port will work with 25. Some ISPs don't allow their customer to connect to third party mail servers, so if you are getting a connection error for the outgoing server you can change the Server Port to 525.
Now you just need to save all of these settings, so Tap Done in the top right every time it appears as you exit from the settings back to the main Settings panel.
That's it - you have now setup your iPhone to connect to a standard IMAP mailbox correctly and most importantly securely!