Vcorreio is described as 'With Vcorreio you can have up to 50 emails of 10 GB each without having to do any setup. And it comes with a free domain and 4 GB of a free file storage solution'. There are six alternatives to Vcorreio, not only websites but also apps for a variety of platforms, including Linux, Mac, Windows and Chrome OS. The best alternative is Zoho. It's not free, so if you're looking for a free alternative, you could try Nextcloud Hub. Other great sites and apps similar to Vcorreio are Google Workspace (Paid), Microsoft 365 (Paid), Atmail Email Server (Paid) and MailShogun (Paid).
Nextcloud is the most deployed on-premises file share and collaboration platform. Access & collaborate across your devices. As fully on-premises solution, Nextcloud Hub provides the benefits of online collaboration without the compliance and security risks.
MailShogun is a plugin that creates domain emails easily. You can pick between your professional and regular e-mail address when sending or receiving from your regular g-mail account. One of the cheapest mail forwarding services you can find on the web.