Open the website of Telstra then go to Telstra email login page.
Enter the link of forgot password.
Enter the email address of your Bigpond email account.
To receive a verification code, choose the method.
To receive a verification code, choose the method your account.
Enter the button of next.
After that, you'll be able to create a new email password and confirm it.
To save changes to the database, enter the button of Save.
Read more here:- https://www.datarecovo.com/telstra-bigpond-webmail-login/
If you have forgotten your password, follow the below steps to regain access to your account.
Open the marketplace homepage Marketplace.Telstra.com.
Click ‘Login’ from the top right hand corner of the Apps Marketplace.
Click ‘Forgot Your Password’
Enter the email address you used to sign to the marketplace with, then select ‘Send Email’ button. Once you have clicked send, the Telstra Apps Marketplace team will send you an email with a link where you can reset your password.
Navigate to your email inbox and open the Telstra Apps Marketplace email.
Within the email, you will need to click the ‘reset password’ button. This will then open a new internet browser window, which will request you to reset your password. Once you reset your password, you will be provided with a confirmation email from the Telstra Apps Marketplace team advising of the successful change.