Professional Email mailboxes work in any email program and on any phone. Everything you need is on the service page, under Email Management → Connection Settings (see Professional Email: First steps).

The settings

• Username: the full email address (e.g. sales@yourdomain.com), not just sales.
• Password: the mailbox password. If you've forgotten it, set a new one with Change Password in the mailbox list.
• The outgoing server (SMTP) requires authentication with the same username and password.
• The incoming and outgoing server is the same. Enter it exactly as shown, not mail.yourdomain.com.

Choose IMAP if you read your email on more than one device: messages stay on the server and sync everywhere. With POP3 they are downloaded to one device.

Thunderbird

1. Menu → Account Settings → Account Actions → Add Mail Account.
2. Enter your name, email address and password and click Continue.
3. If the DNS records are correct, Thunderbird finds the settings on its own. Make sure IMAP is selected and click Done.
4. If it doesn't find them, click Configure manually and fill in the details from the table.

Outlook

1. In Outlook, add a new account (File → Add Account or, in the new Outlook, Settings → Accounts → Add account).
2. Enter the email address.
3. If it asks for the account type, choose IMAP. Don't choose Exchange or Microsoft 365.
4. If it doesn't find the settings on its own, choose manual setup and fill in the server, ports and security from the table, for incoming (IMAP) and outgoing (SMTP).

iPhone and iPad

1. Settings → Mail → Accounts → Add Account → Other → Add Mail Account. (On newer iOS versions, Mail is under Settings → Apps.)
2. Enter your name, email and password and tap Next.
3. Choose IMAP. For Incoming Mail Server and Outgoing Mail Server enter the server from Connection Settings, and in both the full email address as username and the password.
4. Tap Next and Save.

Alternatively, on an iPhone you can install a ready-made connection profile. See Professional Email: Webmail and account settings.

Android

The steps differ slightly depending on the app. In the Gmail app:

1. Tap your profile picture at the top right → Add another account → Other.
2. Enter the email address and tap Manual setup.
3. Choose Personal (IMAP), enter the password and fill in the server, port and security (SSL/TLS) for incoming and outgoing.

It won't connect

• Check that the username is the full email address.
• Try the password in webmail (Open Webmail). If you can't log in there either, set a new password with Change Password.
• If you've turned on two-factor authentication, use an app password (see Webmail and account settings).
• If you can send but not receive, check the DNS records, especially MX.
• If your network blocks port 465, try port 587 with STARTTLS security for SMTP.

For general instructions on email on your devices, see also Setting up email on your computer and phone.