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Setting up mail on iPhone (iOS 11)

Step 1 - Go to Settings > Accounts & Passwords
Step 2 - Tap Add account
Step 3 - Tap Other
Step 4 - Tap Add Mail Account
Step 5 - Enter your account details
Step 6 - Select IMAP
Step 7 - Enter your server settings
Step 8 - Save the account
Step 9 - Tap the account you added
Step 10 - Tap your account again
Step 11 - Tap Advanced
Step 12 - Check Mailbox behaviors
Step 13 - Enter IMAP Path Prefix
Step 14 - Done!

In this guide we show you how to add your email account with IMAP to the mail app on your iPhone with iOS 11.

You can also choose to set up your account with Mobile Sync (Exchange ActiveSync). Check out the guide below.

Setting up Mobile Sync (Exchange ActiveSync) on iPhone

Go to Settings and tap Accounts and Passwords

Step 1 - Go to Settings > Accounts & Passwords

Open Settings on your iPhone and tap Accounts & Passwords.














Tap Add Account to start set up

Step 2 - Tap Add account

Tap Add account.














Select Other as the account type you want to add

Step 3 - Tap Other

Select Other as account type.














Tap Add Mail Account

Step 4 - Tap Add Mail Account

Tap Add Mail Account.














Enter your account details and tap save

Step 5 - Enter your account details

Enter the account details for the email you want to add:

  • Name: this will be visible as the sender.
  • Email: the address you want to add.
  • Password: you use it to log in to Webmail.
  • Description: a name for the account on your device.

Tap Next to continue.








Select IMAP as account type

Step 6 - Select IMAP

Tap IMAP as the account type.














Enter the setting for the incoming and outgoing server

Step 7 - Enter your server settings

Enter the following settings:

Incoming server:

  • Host name: imap.one.com
  • User name: your email account
  • Password: the one you use for Webmail

Outgoing server:

  • Host name: send.one.com
  • User name: your email account
  • Password: the one you use for Webmail

Tap Next to continue.



Make sure notes is disabled and tap save

Step 8 - Save the account

Disable syncing of Notes, if this is enabled. Tap Save.














Tap the account you just added

Step 9 - Tap the account you added

Tap the account you just added. You can recognize it by the description.














Tap the account again

Step 10 - Tap your account again

Tap your account again to open settings.














Tap advanced

Step 11 - Tap Advanced

Tap Advanced, at the bottom of your screen.














Set the correct mailbox behaviors for folders on the server

Step 12 - Check Mailbox behaviors

Check if the Mailbox behaviors are set correctly. These settings determine where your emails are saved.

You need to select the following folders on the server:

  • Drafts mailbox: Drafts
  • Sent mailbox: Sent
  • Deleted mailbox: Trash
  • Archive mailbox: Archive

If no folder, or a different one is selected, tap the mailbox and select the correct folder on the server.

The name of the folder is in English.

Note: If the folder is not listed, log in to Webmail and place an email in the
folder that is not available. Then try again.


Type in INBOX as IMAP prefix

Step 13 - Enter IMAP Path Prefix

Scroll down to the bottom of the screen and enter INBOX as IMAP path prefix, all in capitals.













You are done!

Step 14 - Done!

Your account is now set up correctly.














Related articles:

Setting up Mail OS X - Yosemite
Setting up mail on iPhone (iOS 7)