This guide is based on an LG G3 (with Android Operating System 5.0 Lollipop). Every Android device will have a slightly different process. In addition you may choose to setup email with an App of your own choosing, rather than the one built into your device. If you need assistance with a specific device or app please contact your vendor, or Topmail Support. If you only need the server settings information for Topmail you can get that here: Topmail Server Settings.
Open your settings App.
Tap on "General"
Tap on "Accounts & sync"
Tap on "Email"
Tap on "Email Settings"
Tap on "Add account"
Tap on "Other"
Enter your full @topmail email address and your passphrase (password).
Tap "Next"
Select "IMAP4" as the account type.
Tap "Next"
Enter the following settings:
Username: your full @topmail.com email address
Password: your @topmail passphrase (password)
IMAP Server: imap.topmail.com
Port: 993
Security Type: SSL
Tap "Next"
Enter the following settings:
SMTP Server: smtp.topmail.com
Port: 25
Security Type: TLS
Require sign-in: [check the box indicated]
Username: your full @topmail email address
Password: your @topmail passphrase (password)
Tap "Next"
Set the Account Name (eg. "Account Name") and the display name for emails (eg. Your Name).
Tap "Done"