No, it is currently not possible to change your email address in your existing De Lijn account via the online portal.

To update your email address, follow these steps:

• Create a new account with the new email address you want to use via the De Lijn online portal.
• Delete the old account with the old email address from the system.

See also

• What should I do about my travel pass and renewal proposal if I create a new account?
• Can I keep my old travel pass if I delete my old account?