iPhone 6S email notification

I have Apple iPhone 6S
How do I set the email notification, so that it makes a sound when an email is sent to my server.

Presently, I have set the following:
Settings >Notifications >Mail >Allow Notifications ON >Show in Notification Center ON >Badge App Icon ON >Show on Lock Screen ON >Alert Style when Unlocked: Alerts - Checked And yes, I have the Sound already set from the Sounds option.

When someone sends me email I am never notified by a sound. So - From the bottom of the Home screen, when I click on the "mail" option, (NOT gmail app icon), and then I get the sound. Quite useless, as I want to be notified by sound when I have email in Locked Screen.

The "Fetch" is set for 15 minutes. Unacceptable. I want to be notified, by a sound, when someone sends me email.

Any help will be sincerely appreciated.

DonS

Forum: 

Question

What app are you using for your mail?

Sync settings

What are your sync settings? Services like GMail, for example, require you to change the default sync setting from "push" to a schedule to pull mail. This is because they do not properly support the protocol known as iMap Idle. Other protocols, like Exchange, do not require a schedule. If you fail to make this change, you will not be automatically notified of new mail.

I apologize but I do not know

I apologize but I do not know what you mean when you say, "What are your sync settings?" My email server is Great Plains Communications. I must say at this point, I AM NOTIFIED when I get gMail. All I ever get on gMail is spam from web sites that require registration. All my friends, family, etc., send me email via Great Plains Communications.Thank you, so far, for your help.