To delete an e-card you have created, go to the E-Cards > E-Cards section from the menu on the left and click the Operations button on the right of the e-card you want to delete in the list. Select Delete from the menu that opens.
If you confirm the warning you see, the E-Card you selected will be deleted.
If the E-Card you choose is linked to any donation page, donation form or fundraising campaign, the E-Card field will be updated as empty / not sent.
If it is on the E-Card page, it will be removed automatically.