Google Translation:

Dear users!

Technical support for UPC Webmail and the related e-mail service will be discontinued by Vodafone on March 1, 2021, as a result of
which @ upcmail.hu, @ chello.hu, @ monornet.hu, @ upctelekom.hu, @ upc.hu or any
address ending in @ vodamail.hu you have provided, it needs to be changed in the meantime, as the use of a non-functioning e-mail address may lead to the risk of permanent loss of the user account in the future.
You can overwrite the email addresses you currently enter in the image below.
All you have to do is send your new email address HERE and we will rewrite your email addresses.

Giga Staff