Email remains the number one entry point for cyberattacks. From phishing campaigns and business email compromise to malware and account takeovers, most successful attacks begin with a single email.
If you're evaluating a Managed Service Provider (MSP) to handle email security, you'll quickly discover that not every provider defines "email security" the same way.
Some MSPs simply enable spam filtering and consider the job done. Others build a comprehensive security program that includes email authentication, continuous monitoring, user awareness training, and rapid incident response.
Knowing the difference can significantly impact your organization's security.
Effective email security isn't one product or one setting. It's a layered strategy designed to protect your organization from multiple attack methods.
A complete MSP email security program should include five core components.
Email authentication forms the foundation of every secure email environment.
Your MSP should properly configure and actively manage:
These records prevent cybercriminals from spoofing your domain, improve email deliverability, and provide visibility into who is sending email on behalf of your organization.
Every domain you own—including secondary and parked domains—should be protected.
If DMARC isn't part of your MSP's standard process, your organization has a significant security gap.
Spam filtering alone is no longer enough.
Modern email security should include:
Whether your provider uses Microsoft Defender for Office 365, Mimecast, Proofpoint, Barracuda, or another enterprise platform, success depends less on the product itself and more on proper configuration, monitoring, and ongoing tuning.
A security tool left at default settings offers only limited protection.
Many successful cyberattacks don't exploit software—they compromise user accounts.
Your MSP should be enforcing:
Monitoring login activity for impossible travel, unfamiliar devices, unusual locations, and suspicious behavior can stop account compromise before significant damage occurs.
Technology alone cannot stop every phishing attack.
Employees remain one of the most important layers of defense.
An effective program includes:
The objective isn't to embarrass employees.
It's to create habits that help users recognize suspicious emails before clicking.
This is where many MSPs separate themselves.
Email security requires ongoing operational management—not simply installing software.
Your provider should regularly:
Without continuous monitoring, even the best security tools eventually become ineffective.
When evaluating an MSP's email security services, ask these questions.
Many providers configure SPF and DKIM but never move DMARC beyond monitoring mode.
Ask:
Experienced providers will immediately discuss:
If the conversation only focuses on DNS records, they may lack real-world deployment experience.
No email filtering platform blocks 100% of threats.
Ask about their response process.
Do they:
A mature incident response process matters just as much as prevention.
Your MSP should monitor:
Whether they use Microsoft Sentinel or another security monitoring platform, there should be continuous visibility into account activity.
You should receive regular reports showing:
If your MSP can't demonstrate ongoing management, they're likely only maintaining the software—not actively managing your security.
Watch for warning signs that indicate your provider's email security offering may be limited.
These include:
Configuration has value—but active management delivers the real protection.
A mature MSP email security program produces measurable improvements over time.
You should expect to see:
Email security isn't a one-time project.
It's an ongoing process that continually adapts as attackers change their tactics.
At LI Tech Advisors, we help organizations across Long Island implement layered email security that goes beyond basic spam filtering.
Our approach includes:
Whether your organization has ten mailboxes or several hundred, the principles remain the same.
Authentication, filtering, account protection, user awareness, and continuous monitoring work together to create a resilient email security program.
Anthony has been in the MSP business since before the acronym existed. Managed IT once started as break-fix solutions and some light phone support.
Since then, he has seen the industry flourish into a landscape of platforms, cloud servers, software tools and AI . Tailoring network configurations and software stacks to the specific needs of each business.
In his current role, he focuses on proactive planning, ensuring clients can avoid potential issues altogether. This involves meticulous planning for enhanced business continuity, allowing swift resolution of any unforeseen challenges. What initially began as addressing "fires" through break-fix solutions has evolved into a proactive approach, ensuring that such issues are prevented from arising in the first place.
