Howdy there aks9893,
It sounds like you are wanting to add your email account to your iPhone. You may be able to find the mail settings you need with the following website:
Mail Settings Lookup - Apple Support
When you have the settings you need, you can use the following article to set up the account, named:
Add an email account on your iOS device
If you cannot find the settings with the first website, you should reach out to your email provider using the second link, which has the list of settings needed to get it going toward the bottom.
Thank you for using Apple Support Communities.
All the best,
Sterling