disroot.org

Yearly cost for 10 mail accounts

0.00€

Can you use your own/company domain?

Yes

pop3 available?

Yes

imap available?

Yes

Management

Easy

Mailbox max. size

2.00Gb

Max. mailboxes number

1

It's not designed for a company, but for individuals. You can apply for use your own domain, and pay them a periodical cup of coffie ;-)

They offer lots of other services, based in alternatives to companies/closed services. They are freedom advocates ;-)