This article applies to 123-reg VPS hosting running Plesk 10
This article will explain how to access Webmail in Plesk.
If you need to access your webmail in Plesk, visit webmail.example.com in your web browser (where example.com is the domain of your website). Or you can follow these steps.
On the Mail tab click the icon next to the e-mail addresses. The default webmail interface is provided by Horde.
Enter your mail login credentials and click Login.
You will now be able to view your mailbox in webmail. If you prefer you can also set up your mail account to work with an e-mail client installed on your computer, such as Microsoft Outlook or Mozilla Thunderbird.