If you want a .eus email account you can use the ni.eus service. It is free, it is in Basque, it does not show ads and it maintains the privacy of users’ data. As in any other email service (Gmail, Outlook, etc.), you can choose the address you want if it is available.
Also, you can add your ni.eus address to your usual e-mail service to be able to use all your addresses from the same place. You have help articles if you need assistance taking that step.
In addition to the free option, you can have your addresses with a .eus domain name chosen by you, instead of having the domain ni.eus. This option is paid and there are two different plans.
On the one hand, if you choose the Premium plan you can create 3 addresses with your domain paying € 3 / month. With the Erraldoia plan you can create as many email addresses as you want, paying € 9.99 per month. The cost of registering your domain name is included in the price of both plans.
Finally, if you want to have your email address with another provider, that is also an option. In this case, it is usually purchased as an additional service when registering the domain name. However, some registrars selling .eus domain names offer an email address for free. In our price table you can see which registrars offer free email addresses and how many addresses they offer. Depending on the number of postal addresses you need, you can register your domain name with one of those registrars to avoid having to pay for email accounts.
If this is not enough, you can purchase more email accounts with any registrar when you register your domain name.