Setting up Mail on iPhone (iOS 11/12)

In this guide, we show you how to add your email account with IMAP to the Mail app on your iPhone with iOS 11/12.

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 behaviours
Step 13 - Enter IMAP Path Prefix
Step 14 - Done!

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

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Step 1 - Go to Settings > Accounts & Passwords

Open Settings on your iPhone and tap Accounts & Passwords.

Go to Settings and tap Accounts and Passwords

Step 2 - Tap Add Account

Tap Add Account.

Tap Add Account to start set up

Step 3 - Tap Other

Select Other as the account type.

Select Other as the account type you want to add

Step 4 - Tap Add Mail Account

Tap Add Mail Account.

Tap Add Mail Account

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: the password you use to log in to Webmail.
Description: a name for the account on your device.

Tap Next to continue.

Enter your account details and tap save

Step 6 - Select IMAP

Tap IMAP as the account type.

Select IMAP as account type

Step 7 - Enter your server settings

Enter the following settings:

Incoming server:

Host Name: imap.one.com
Username: your email account
Password: the one you use for Webmail

Outgoing server:

Host Name: send.one.com
Username: your email account
Password: the one you use for Webmail

Tap Next to continue.

Enter the setting for the incoming and outgoing server

Step 8 - Save the account

Tap Save to create the account. Note that syncing of notes is not supported via IMAP, so we recommend disabling the option.

Make sure notes is disabled and tap save

Step 9 - Tap the account you added

Tap the account you just added. You'll recognise it by the description.

Tap the account you just added

Step 10 - Tap your account again

Tap your account again to open your settings.

Tap the account again

Step 11 - Tap Advanced

Tap Advanced at the bottom of your screen.

Tap advanced

Step 12 - Check Mailbox behaviours

Check if the Mailbox behaviours are set correctly to make sure that your emails are saved in the right place.

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 folder, 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 you are looking for is not listed, log in to Webmail and place an email in the folder that is missing. Then try again, it should now show up in the list.

Set the correct mailbox behaviors for folders on the server

Step 13 - Enter IMAP Path Prefix

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

Type in INBOX as IMAP prefix

Step 14 - Done!

Your email account is now set up correctly on your iPhone.

You are done!

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