If you receive an email which looks as though it has come from IONOS you should delete it without opening it or clicking on any links.
These emails are generated by scamming robots who send out to all info@… emails and may be sent to your email, if it starts with info@. They will often ask you to verify your email or renew your domain name by clicking on a link.
IONOS will never send you anything directly – we take care of all things that concern your domain name and emails (renewal etc), and we are the only ones in contact with IONOS.