thank you very much for your question. My Name is***** and I´d like to help you as good as possible.
linuxmail.org belongs to mail.com, it is one of their other businesses. All you can really do is to ask their support about why they have shutdown your @mail.com address. Personally I haven´t heard that they are moving users to linuxmail.org instead, but of course this could be the case indeed.
Can you access your mails via linuxmail.org using your old mail.com credentials?
Thank you and best regards,
That´s no problem Ann, I will issue a refund for you. If you have other questions in the future, we´d be glad to help you again at JustAnswer.
Have a great evening and best regards,