To access your organisation's Taxi for Email account, you'll need to be invited into it.
Your organisation owner will invite you into Taxi
The organisation owner can follow these instructions.
Follow the instructions in the invitation email
Click 'Set your password' in the email.
Enter your desired password
You'll need to follow the password guidelines on the field.
If you don't receive an invite email, firstly please check your spam folder. Your organisation owner can also resend the welcome email from their user management page.