For resolving yahoo mail error code 1242, it is advisable to switch on and start the system after that the user should log in system with admin permissions further from the start menu the user should choose the option “All Programs” further the user should get started with the system restore also the user should click the confirm button. If needed then for further information the user should get connected with the team of trained and certified yahoo experts.

https://www.yahoo-helpline.com