A company's most valuable correspondence and documents live in two places: mailboxes and file folders. Quotes, invoices, contracts and payment instructions all pass through them, which is exactly why attackers target them. According to the FBI IC3 2025 Internet Crime Report, 24,768 business email compromise (BEC) complaints in the US reported total losses of $3.05 billion in 2025. Disorder has a quieter cost as well: Atlassian's State of Teams 2025 survey found that teams waste 25% of their time just searching for answers.
This hub gathers our articles on business email and document management into a path that runs from the basics to a buying decision. Begin with the eight criteria in how to choose a business email service, then protect your domain with our SPF, DKIM and DMARC explainer. When budgeting, review the business email pricing factors; once your DMARC record is live, use how to read DMARC reports to see who sends mail in your domain's name, and if your quotes are disappearing at the other end, follow the diagnosis order in why emails go to spam. Next, tackle two everyday team problems: shared mailbox management ends password sharing, and an email approval workflow stops unapproved messages going out in the company's name. Our guide to mailbox permissions and delegation sets out who gets which rights, managing invoices in a shared inbox brings order to supplier invoice traffic, and a corporate email signature standard keeps every mailbox consistent.
To recognise the threats, our articles on how to spot phishing emails, lookalike domain attacks and, for finance teams in particular, bank detail change email fraud form the core of the deeper reading. Where suspicious mail waits and who may release it is decided by your email quarantine policy. On the document side, what document management is, file sharing permissions and document version control walk you from a chaotic shared drive to an orderly document store. To move invoice and contract attachments from mailboxes into that store by rule, continue with saving email attachments to document storage.
When you are ready to act, see our pages on cyber security consultancy, document management systems and data protection compliance. Smart360, our product family that brings SmartMail and SmartFiles together under one panel and one identity, applies the principles in these guides (approval workflows, inbound email assessment, a permissions matrix and full version history) in a single place.
Reading list by scenario and sector
- Payment and bid security: fake invoice email scams, email fraud in logistics and tender email security.
- Identity, access and compliance: single sign-on (SSO), offboarding email access and email archiving and data protection.
- Document-heavy professions: document management for accounting firms, document management for law firms and AI document analysis.
- Set-up, migration and official correspondence: setting up email with your own domain, business email migration, business email encryption and registered electronic mail (KEP).
- Groups, file infrastructure and sectors: email management for multiple companies, replacing an on-premise file server, architecture firm file management and import export document management.