Is individual business email suitable for solo legal teams planning to scale, and what are the technical prerequisites?

Yes, individual business email is highly suitable for solo legal teams. It establishes a professional custom domain identity and supports starting with a single account. The primary prerequisite is owning a manageable domain name. During implementation, IT leads must configure sender authentication mechanisms like SPF, DKIM, and DMARC to ensure global deliverability and prevent spoofing. Multi-device access should be enabled via standard protocols (SMTP, IMAP, POP). As the solo practice expands, administrators can add new accounts, with costs prorated based on the current contract. While built-in security features significantly reduce risks, they do not guarantee absolute security. For undocumented features or specific scaling costs, always consult the 138 Enterprise Email official direct-operated support team.