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How do I set up a mail account in for example Outlook?

You can set up your email account in a client on your computer or a mobile device. Examples of clients are Outlook or Mac Mail. Before you can set it up, you first need to create an email account in the control panel.

Creating a new e-mail account

What settings should I use?

Depending on the client you are using, the setup will be different, but normally you need the following settings.

Username: your complete email address
Password: the one you chose when you created your account

Incoming server: imap.one.com
Incoming server port: 993 + SSL

Outgoing server: send.one.com
Outgoing port: 587 + TLS/SSL (or 465 / 2525 / 25)
Outgoing server authentication: username and password, same as the incoming server

We recommend using IMAP to set up your email account because it syncs your emails across all your devices and Webmail. Unlike POP, which downloads your emails and removes them from the server and Webmail.

If you really want to use POP, you need these settings for the incoming server: pop.one.com - port 995 - SSL.

What is the difference between POP and IMAP?

If you want to set up your account on a mobile device, you can also consider using Mobile Sync. The advantage of Mobile Sync is that it also syncs your calendar and contacts. You can activate a free trial of Mobile Sync from Webmail.


Setup guides

We have created step-by-step setup guides for some of the most popular applications.

Setting up Microsoft Outlook 2016
Setting up Microsoft Outlook 2013
Setting up Microsoft Outlook 2010
Setting up Microsoft Outlook 2007
Setting up Microsoft Outlook 2003
Setting up Microsoft Outlook 2011 for Mac
Setting up Thunderbird
Setting up Mail OS X - Sierra
Setting up Mail OS X - Yosemite
Setting up Mail OS X (Lion)
Setting up Windows 10 Mail
Setting up Windows Mail
Setting up Windows Live Mail
Setting up Windows Live Mail 2011
Setting up Windows Phone
Setting up Outlook Express
Setting up Opera Mail
Setting up Nokia/Symbian Mobile Phones
Setting up mail on iPhone (iOS 10)
Setting up mail on iPhone (iOS 7)
Setting up Android Email
Setting up a Mobile Phone

Related articles:

Email setup troubleshooting guide
Logging on to webmail