Ruang.Email is a private email hosting service that helps individuals and businesses use professional email addresses with their own custom domains. Its service combines domain-based mailboxes with a self-service management portal, fast webmail, and support for connecting through Gmail, Apple Mail, Thunderbird, or Outlook using IMAP and SMTP. Mail infrastructure uses TLS 1.3 encryption and Rspamd filtering to help protect against spam. Ruang.Email also supports SPF, DKIM, and DMARC authentication, with DNS records prepared for Cloudflare and automatic validation of required records.

Newly registered domains receive a free Starter plan with up to three email accounts and 10 GB of storage per account. Users can manage passwords, storage quotas, and sending limits, while domain owners control staff account creation. Businesses needing more capacity can request plans for 20 to 100 or more accounts, custom storage, higher sending limits, and DNS setup assistance via WhatsApp. The service also offers public profile image hosting and support for BIMI vector logos.