Set up an email account o...
Set up an email account on your iPhone, iPad, or iPod touch
Sending and receiving email with your iOS device
Here we use "firstname.lastname@example.org" as an example.
Step 1: Add an email account
If you are using iOS 11 or later, go to Settings then Accounts & Passwords then Add Account. If you are using iOS 11 or earlier, go to Settings then Mail, Contacts, Calendars then Add Account. You need to choose Other to add a new account.
In the following window, choose a name for your account, which would be the name that people see when they receive emails from you. Here we will just use "John Doe". Then put your email address as the user name and the password you that set up for this account. Description is a friendly name that you give to the account, it is only visible to you in the mail application of your device.
Step 2: Set up incoming mail server
As you continue, you will see this window asking for incoming and out going mail server info. For IMAP account, choose IMAP and use yourname-extension-mail.dynu.com as mail server (in our case, dynu-biz-mail.dynu.com). You need to put in user name and password one more time. Please note that the username is your full email address, email@example.com in our case.
Use yourname-extension-smtp.dynu.com as mail server (in our case, dynu-biz-smtp.dynu.com). You need to put in user name and password one more time. Please do enter the username and password even if the application says it is optional.
Step 3: Verify account information to use SSL
Now you can see your account in the Accounts list. You just need to verify one last time the account information, particularly the information of the incoming server and outgoing server.
Click on the email account that you just set up in the list of email accounts, then click on Account firstname.lastname@example.org to go to the account settings.
Go to SMTP yourname-extension-smtp.dynu.com then yourname-extension-smtp.dynu.com, enable Use SSL and make sure that SMTP server is yourname-extension-smtp.dynu.com port is 587.
Go back to account settings, in Advanced tab, verify the information of IMAP incoming server. Enable Use SSL and make sure that IMAP server is yourname-extension-mail.dynu.com port is 993.
Now we will be able to send and receive email using email@example.com.
NOTE: If you are using POP3 protocol, please change the incoming server address to yourname-extension-mail.dynu.com, and POP SSL port 995. If you are using non SSL port, please refer here for port information.