Microsoft 365 is more than email. It’s your identity system, your file storage, your collaboration platform, your phone system (if you use Teams Voice), and increasingly your security layer. Most small businesses use maybe 20% of what they’re paying for – and the 80% they’re ignoring includes critical security settings.
Here’s what proper 365 administration looks like vs. just having accounts set up.
Security Configuration (What Most Businesses Skip)
Conditional Access Policies
Control who can access your 365 environment and from where. Block logins from countries you don’t do business in. Require MFA for admin accounts. Block legacy authentication protocols that bypass MFA. Require compliant devices for access to sensitive data.
MFA Enforcement
Not just “enabled” – properly enforced. Security defaults at minimum, Conditional Access policies for more control. Every user, no exceptions. The #1 thing that prevents account compromise.
Email Security Settings
- Anti-phishing policies (impersonation protection for your domain and key people)
- Safe Links (scans URLs in emails at time of click)
- Safe Attachments (detonates suspicious attachments in a sandbox)
- DKIM, SPF, DMARC configured (prevents email spoofing of your domain)
- External email tagging (marks emails from outside your organization)
Data Loss Prevention
Policies that prevent accidental sharing of sensitive data – credit card numbers in emails, SSNs in shared files, client data sent to personal accounts.
User Management
- License optimization – Are you paying for E3 licenses when E1 would suffice for some users? Are there unused licenses from former employees still billing?
- Group-based access – Security groups controlling access to SharePoint sites, Teams channels, and shared mailboxes. Not individual permissions that become unmanageable.
- Shared mailboxes – info@, support@, sales@ configured properly without paying for extra licenses.
- Distribution lists vs. 365 Groups – Choosing the right structure for how your team actually communicates.
SharePoint and OneDrive
- File sharing policies (who can share externally, link expiration)
- Storage organization (department sites, project libraries)
- Sync client configuration (which folders sync to which devices)
- Version history and retention (recover deleted or overwritten files)
Teams Administration
- Teams creation policies (prevent sprawl)
- Guest access controls
- Meeting policies (recording, transcription, external participants)
- Teams Voice configuration (if using Teams as your phone system)
What We Handle
As your 365 admin, we manage all of the above – security configuration, user lifecycle, license optimization, email security, and ongoing maintenance. When Microsoft releases new security features (which happens monthly), we evaluate and deploy them. When something breaks or a user needs help, we’re 30-60 minutes away.
Most of our clients are paying for security features in their 365 subscription that aren’t turned on. That’s like paying for a security system and never arming it.
Need IT help? Seashore IT provides managed IT for businesses with 5-250 computers across the Western US. Flat monthly rate, 30-60 minute response, 24x7x365. Call (833) 997-6886 or email info@seashoreit.com.
Seashore IT – Your transparent IT partner, aligned to your goals, embedded in your success.