zoho.eu not recognized as valid email address

zoho.eu not recognized as valid email address

A few times per year I have an issue with  websites registering my @zoho.eu address.   The website will give an error that it is not a valid email address.  I'm guessing that the sites are rejecting the ".eu" part.
Is it possible to create/use an email alias that is zoho.com that directs mail sent to the .com address to my .eu inbox?  I only have a basic/free email account, so it looks like it is not possible.  Can it only be done if I create a Zoho domain account?