Accessing your new email account (Stackmail)


This guide is intended for Blackbox clients who are using Stackmail for their email services (we will have told you if this is the case). Please note that Stackmail is a 3rd party system provided by and we can only therefore provide support for our own clients, for whom we have set the email system up.

Your new domain-based email services (i.e. the bit that enables custom email addresses such as [yourname]@[yourdomainname]) are provided by our technology supplier 20i, and the email system is called Stackmail.

Once we’ve set your new email account(s) up for you, you can access all of your emails – to receive and send – in a variety of ways:

  1. By logging onto the Stackmail website. Initially, this will be the quickest way of getting access to your email account, as all you need is the website address, along with your username and password.
  2. On your smartphone/tablet’s native email application. This can be extremely convenient, as you can manage emails to/from your new account from your mobile device, alongside any other email accounts you may have. Initial set up takes a few minutes because you need to configure the Stackmail account settings on your device.
  3. On your desktop/laptop PC, via your own email client. If you happen to use an email program/client on your computer (e.g. MS Outlook, Apple Mail), you can configure your Stackmail account on that email program to allow you to see your business emails alongside any other email accounts you may have.

This page will give you the information you need to access your new business email account using all of the above methods.

Note about changing your password

If you wish to change you email account password, you will need to do this via the Stackmail website (i.e. Option 1 above). If you plan to do this, it makes sense to do it BEFORE you configure any other options (e.g. smartphone) because the configuration includes this password.

Option 1: Stackmail webmail

  1. You can access your email via any internet-connected device by going to
  2. Enter your email address and password in the boxes (we will have given these to you separately).
  3. You will be taken to your Inbox, where you can read, organise and send your emails.

If you wish to change your account password, you should log in and click on the Settings button in the left hand menu, followed by the Password link. Then just enter your old password, followed by the new one twice, and hit Save. This new password will apply not only to this webmail login, but all of the other methods below too.

Screenshot showing the location of the Settings -> Password buttons on the Stackmail page, to help people change their passwords.

Options 2&3: Smartphones/tablets/email clients (e.g. Outlook)

To use the native/inbuilt email application on your smartphone or tablet, or indeed email clients on your PC such as MS Outlook or Windows Mail, you just need to add your new account, which essentially just tells your existing email program all of the details it needs to know in order to connect to your mailbox.

The exact process will vary depending on which device/program you are using, but the information that you will need to enter is listed below.

This can be a little bit fiddly to get right, because you need to enter a variety of different settings – but it is at least a one-off process. Follow the ‘create email account’ setup wizard on your particular device – you will likely have to enter most if not all of the following settings.

Account Type: If you get the option of IMAP or POP3 for your email account type, you should always choose IMAP. You may also be offered a number of branded account types (such as Hotmail, Yahoo etc), in which case you would choose the ‘Other’ option, so that you can enter the configuration below.

As with all email setups, the configuration for ‘inbound’ and ‘outbound’ (i.e. receiving and sending, respectively) are separate, so you need to enter details relating to both.

Inbound Email Server Settings

Incoming/Inbound Server name: imap.[your-full-domain-name]. So if your domain name was, you would enter
Require SSL / Secure Connection: Yes
Port Number: 993
Username: the username that we have provided to you (i.e. your email address)
Password: the password that we have provided to you.

Outbound/SMTP Email Server Settings

Outgoing/outbound Server name: smtp.[your-full-domain-name]. So if your domain name was, you would enter
Require SSL / Secure Connection / Require Authentication: Yes
Port Number: 465 (see note below)
Username/Password: same as above – enter these even if marked ‘optional’

Note: Depending on which email programme you use, you may be given an option relating to what type of security connection you wish to use for your outbound emails. The options vary a little in the way they are presented, but are generally ‘SSL/TLS’, ‘SSL’, ‘TLS’ or ‘STARTTLS’. The Stackmail system uses ‘SSL’, so you should choose either ‘SSL/TLS’ or ‘SSL’ (whichever option is available), using the port numbers as above.

When you have correctly configured your email program, it will sync your mailbox to your device. You should test both inbound and outbound emails to satisfy yourself that the emails are being delivered as expected.

If it does not work first time, you should check the configuration to ensure that the correct server names have been entered into the correct fields (i.e. not confusing inbound and outbound). If you were not asked to enter Port Numbers during the set up process, you should look for any ‘advanced’ options and set them there. Some devices default to the port numbers above, on others you need to specify it manually.

The image below shows how the setup works using Microsoft Outlook as the email client:

a screenshot showing how to enter the stackmail account settings when configuring the account in Microsoft Outlook