Cloud Email Services for Business — Microsoft 365 vs Google Workspace vs self-hosted

Corporate email is a core communication tool — and choosing the right platform affects your company's security, productivity, and costs. There are three main options: Microsoft 365, Google Workspace, and a self-hosted email server. Here's an honest comparison.

Why Are Businesses Moving to Cloud Email?

Running your own email server was the standard 10–15 years ago. Today, most companies are migrating to cloud solutions for specific reasons:

• Reliability — Microsoft 365 and Google Workspace guarantee a 99.9% uptime SLA; self-hosted servers rarely match this.
• Security — enterprise-grade spam filters, phishing protection, and encryption with no extra setup.
• GDPR compliance — Microsoft and Google operate European data centres and meet GDPR requirements.
• Access from anywhere — email, calendar, and contacts synced across all devices.
• No server maintenance — no patch management, backups, or hardware replacement to worry about.
• Predictable cost — a fixed price per user, per month.

Microsoft 365 — Strengths and Best Use Cases

Microsoft 365 (formerly Office 365) is the leading enterprise solution in Bulgaria and worldwide. It includes Exchange Online for email, Outlook as the client, Teams for communication, SharePoint for documents, and the full Office suite (Word, Excel, PowerPoint).

Advantages of Microsoft 365

– Outlook — the most widely used corporate email client in Bulgaria
– Tight integration with Windows, Active Directory, and the entire Microsoft ecosystem
– Teams — unified chat, video conferencing, and file sharing
– SharePoint and OneDrive — enterprise file management
– Advanced security options — Defender, DLP, Information Protection
– Compliance with multiple regulatory standards (ISO 27001, SOC 2, GDPR)

Disadvantages

– Higher cost on full plans
– More complex administration with advanced configurations
– Functionality depends on the subscription — if it lapses, you lose access to the apps

Best fit for

Companies running Windows and Microsoft products; organisations needing Teams and built-in collaboration; businesses with stricter compliance requirements.

Google Workspace — When It's the Better Choice

Google Workspace (formerly G Suite) offers Gmail for business, Google Drive, Docs, Sheets, Meet, and Calendar. A fully web-based solution — running in the browser without app installations.

Advantages of Google Workspace

• Easy administration — an intuitive console suitable for non-technical admins
• Lower entry pricing (Business Starter: ~€6/user/month)
• Excellent real-time collaboration in Google Docs/Sheets
• Gmail — exceptionally powerful spam filters
• Strong mobile experience

Disadvantages

• No desktop Office apps in the basic plans
• Weaker integration with Windows environments and Active Directory
• Some industries prefer Microsoft due to internal standards

Best fit for

• Startups and smaller companies on a tight budget
• Teams that work primarily in the browser
• Organisations with heavy document collaboration needs

Comparison: Microsoft 365 vs Google Workspace

Self-Hosted Email Server — Who Still Needs One?

A self-hosted email server (Microsoft Exchange on-premise, Zimbra, Postfix) requires hardware, licensing, maintenance, and specialist expertise. In most cases, cloud solutions are the better deal — but there are exceptions:

• Regulatory requirements: industries where data cannot leave a specific physical location
• Specific integrations: legacy systems requiring local Exchange
• Already amortised infrastructure: if you have a licensed Exchange and a trained team

For 90% of SMBs in Bulgaria, a cloud solution is cheaper, more secure, and easier to manage than the self-hosted alternative.

How BGS Helps with Email Migration

Мигрирането към облачен имейл е процес, изискващ внимателно планиране — за да не се загубят стари имейли и да не се прекъсне комуникацията. BGS изпълнява следния процес:

• Analysis: assessment of the current environment, mailbox count, data volume
• Planning: target platform selection, timeline, employee communication
• Pilot migration: test with 2–3 users before the full rollout
• Mass migration: moving all data without loss
• DNS changes: redirecting email traffic to the new platform
• Post-migration support: helping employees with questions about the new client

Migration typically takes 1–3 working days for a typical SMB environment.

Ready to move to cloud email? Get in touch with BGS for a free assessment and migration plan.