--- title: Email Security Best Practices for Ohio Businesses description: "Ohio businesses face growing email threats including phishing, BEC scams, and ransomware. Ashton Solutions managed IT in Beachwood Ohio breaks down the essential email security controls: DMARC/DKIM/SP" --- [![Ashton Solutions](https://www.ashtonsolutions.com/hs-fs/hubfs/c743380ebbe7d684f1311cdda436439824adad7e.png?width=200&height=81&name=c743380ebbe7d684f1311cdda436439824adad7e.png "Ashton Solutions")](https://www.ashtonsolutions.com) [![Ashton Solutions](https://www.ashtonsolutions.com/hs-fs/hubfs/Ashton_March2026/images/Ashton%20Solutions%20logo_color.png?width=200&height=81&name=Ashton%20Solutions%20logo_color.png "Ashton Solutions")](https://www.ashtonsolutions.com) - [Services](https://www.ashtonsolutions.com/services) - [Who We Support](https://www.ashtonsolutions.com/who-we-support) - [About](https://www.ashtonsolutions.com/about) - [Services](https://www.ashtonsolutions.com/services) - [Managed IT](https://www.ashtonsolutions.com/services/managed-it) - [Co-Managed IT](https://www.ashtonsolutions.com/services/co-managed-it) - [Security](https://www.ashtonsolutions.com/services/security) - [Compliance](https://www.ashtonsolutions.com/services/compliance) - [IT Projects](https://www.ashtonsolutions.com/services/it-projects) - [Transaction Advisory](https://www.ashtonsolutions.com/services/transaction-advisory) - [Networking](https://www.ashtonsolutions.com/services/networking) - [AI Solutions](https://www.ashtonsolutions.com/services/ai-solutions) - [Who we help](https://www.ashtonsolutions.com/who-we-support) - [Non-profit Organizations](https://www.ashtonsolutions.com/who-we-support/non-profits) - [Financial Services](https://www.ashtonsolutions.com/who-we-support/financial-services) - [Legal Services](https://www.ashtonsolutions.com/who-we-support/legal-services) - [Professional Services](https://www.ashtonsolutions.com/who-we-support/professional-services) - [Industrial & Manufacturing](https://www.ashtonsolutions.com/who-we-support/industrial-manufacturing) - [Architecture, Engineering & Construction](https://www.ashtonsolutions.com/who-we-support/architecture-engineering-construction) - [Real Estate & Development](https://www.ashtonsolutions.com/who-we-support/real-estate-property-development) - [Life Sciences](https://www.ashtonsolutions.com/who-we-support/life-sciences) - [Other](https://www.ashtonsolutions.com/who-we-support/other-industries) - [About](https://www.ashtonsolutions.com/about) - [Meet the Team](https://www.ashtonsolutions.com/about#meet-the-team) - [Our Approach](https://www.ashtonsolutions.com/about/our-approach) - [Our Story](https://www.ashtonsolutions.com/about#our-story) [Client Help Desk ![download-1](https://www.ashtonsolutions.com/hubfs/download-1.png)](https://portal.ashtonhelps.com) [Talk to an Expert ![download-1](https://www.ashtonsolutions.com/hubfs/download-1.png)](https://www.ashtonsolutions.com/contact) [Client Help Desk](https://portal.ashtonhelps.com) [Talk to an Expert](https://www.ashtonsolutions.com/contact) [Ashton Solutions](https://www.ashtonsolutions.com/the-ashton-solutions-blog/author/ashton-solutions) | 03.04.2026 | 7 Min Read # Email Security Best Practices for Ohio Businesses Email remains the number-one attack vector for cybercriminals targeting Ohio businesses. According to the **FBI 2023 Internet Crime Report**, phishing, vishing, and business email compromise (BEC) schemes collectively cost American organizations **more than $4.5 billion** — and small to mid-sized companies in the Greater Cleveland area are not exempt. If your business relies on email to communicate with customers, vendors, and partners, your inbox is a front door that attackers are actively trying to kick in. At **Ashton Solutions**, our managed IT team in **Beachwood, Ohio** works with businesses across Northeast Ohio — from professional services firms in downtown Cleveland to manufacturing companies in the surrounding suburbs — to implement layered email security that stops threats before they reach employees. This guide covers the essential email security controls every Ohio business should have in place in 2024 and beyond. ## Why Is Email the Top Cybersecurity Risk for Ohio Businesses? Email is ubiquitous, trusted, and difficult to authenticate at a glance — which makes it the perfect weapon for cybercriminals. The **Verizon 2024 Data Breach Investigations Report (DBIR)** found that **36% of all data breaches involved phishing**, and that the median time for an employee to click a malicious link is under 60 seconds after delivery. Once an attacker has access to a single inbox, they can pivot to financial fraud, data theft, and ransomware deployment. For Ohio businesses, the threat is compounded by a patchwork of industry-specific compliance requirements — HIPAA for healthcare, GLBA for finance, and Ohio data protection statute (SB 220) — all of which carry significant penalties when email security failures lead to a breach. ## How Can You Protect Your Business Against Phishing Attacks? Phishing prevention requires a combination of technical controls and human training. No single tool is sufficient on its own. ### Deploy Email Authentication: SPF, DKIM, and DMARC The foundational layer of email security is proper DNS-based authentication. Three protocols work together to verify that email claiming to come from your domain actually did: - **SPF (Sender Policy Framework)** — Publishes a DNS record listing every mail server authorized to send email on behalf of your domain. Any message from an unlisted server fails SPF. - **DKIM (DomainKeys Identified Mail)** — Adds a cryptographic signature to every outbound message, allowing the receiving server to verify the message was not altered in transit and genuinely originated from your domain. - **DMARC (Domain-based Message Authentication, Reporting, and Conformance)** — Ties SPF and DKIM together with a policy that instructs receiving mail servers to quarantine or reject messages that fail authentication. DMARC also delivers aggregate reports so you can monitor who is sending email on your behalf. According to **Proofpoint 2023 State of the Phish**, **75% of organizations experienced a phishing attack in the past year**, yet fewer than half have deployed DMARC at an enforcement level (p=reject). Without DMARC enforcement, attackers can freely spoof your domain to deceive customers and partners — a tactic used in countless BEC scams targeting Northeast Ohio companies. Ashton Solutions configures and monitors DMARC, DKIM, and SPF records for managed clients as part of our baseline email security stack. We review DMARC aggregate reports monthly to catch unauthorized senders before they cause damage. ### Leverage Microsoft 365 Advanced Threat Protection Most Ohio businesses running Microsoft 365 are using Exchange Online Protection (EOP) for basic filtering — but EOP alone is not enough. **Microsoft Defender for Office 365** (formerly Office 365 Advanced Threat Protection) adds critical layers that EOP cannot provide: - **Safe Links** — Rewrites all URLs in email and Office documents and scans them at click-time. If a link is found to be malicious after delivery, Safe Links blocks it even if the employee has already opened the message. - **Safe Attachments** — Detonates suspicious email attachments in a sandboxed virtual environment before delivery, catching zero-day malware that signature-based antivirus would miss. - **Anti-Phishing Policies** — Uses machine learning to detect impersonation attacks targeting your executives and key vendors, a technique central to BEC fraud. - **Attack Simulator** — Allows IT administrators or your managed IT provider to launch simulated phishing campaigns against your own employees to measure and improve security awareness. Many Ohio small businesses subscribed to Microsoft 365 Business Basic or Business Standard are not licensed for Defender for Office 365. A licensing audit by Ashton Solutions frequently reveals this gap — and upgrading to Business Premium or adding the Defender add-on can be accomplished with minimal disruption and a predictable monthly cost. ## What Is a Business Email Compromise (BEC) Scam — and Are Ohio Companies at Risk? Business Email Compromise is the costliest form of cybercrime tracked by the FBI. Unlike ransomware, BEC attacks rarely involve malware. Instead, attackers compromise or spoof a trusted email account — often a CEO, CFO, or vendor — and manipulate an employee into wiring money or disclosing sensitive credentials. The FBI **Internet Crime Complaint Center (IC3)** recorded **$2.9 billion in BEC losses in 2023 alone**. Common BEC scenarios targeting Ohio businesses include: - **CEO Fraud** — An attacker impersonates the CEO and emails the CFO or accounts payable team requesting an urgent wire transfer, often framed around a confidential acquisition or vendor payment. - **Vendor Impersonation** — The attacker spoofs a known supplier email address and sends updated wire transfer instructions for a pending invoice. - **Payroll Diversion** — Attackers impersonate an employee to request a direct deposit change, redirecting payroll to a fraudulent account. - **Attorney Impersonation** — Fraudsters pose as legal counsel during a transaction, directing client funds to an account they control. Preventing BEC requires DMARC enforcement to block domain spoofing, multi-factor authentication (MFA) on all email accounts to prevent account takeover, and — critically — **a verified callback policy** requiring employees to confirm any wire transfer request by phone using a known number before executing. ## Does Your Ohio Business Need Email Encryption? Email was not designed with security in mind. A standard email travels across the internet in plain text, readable by any party with access to the network path. For businesses handling sensitive data, encryption is not optional. ### When Is Email Encryption Required? - **Healthcare (HIPAA)** — Any email containing Protected Health Information (PHI) must be encrypted in transit and at rest. Ohio healthcare organizations — hospitals, medical practices, dental offices, behavioral health providers — face up to $1.9 million in HIPAA penalties per violation category per year. - **Financial Services (GLBA)** — Banks, credit unions, insurance companies, and financial advisors in Cleveland and surrounding areas must protect customer financial information, including email communications. - **Legal (Ohio RPC 1.6)** — Ohio attorneys have a professional duty to make reasonable efforts to prevent inadvertent disclosure of client confidences, which includes encrypting email containing privileged communications. - **General Business (Ohio SB 220)** — Ohio data protection law provides a legal safe harbor from certain state tort claims for businesses that implement a qualifying cybersecurity program, of which email encryption is a recognized component. For Microsoft 365 users, **Microsoft Purview Message Encryption (OME)** provides a straightforward way to send encrypted email to any recipient, regardless of whether they use Microsoft services. S/MIME certificates offer end-to-end encryption for organizations that require the highest level of assurance. Ashton Solutions implements and manages both solutions for clients across the Greater Cleveland market. ## How Should Ohio Businesses Handle Email Archiving and Retention? Email archiving is often treated as a compliance checkbox, but it is also an operational and legal necessity. A properly configured email archive enables: - **Legal discovery (e-discovery)** — Tamper-proof, searchable records produced rapidly in response to litigation holds or regulatory subpoenas. - **Compliance with industry retention schedules** — HIPAA (6 years), SEC 17a-4 (3 to 6 years), and Ohio public records law each mandate specific retention periods. - **Business continuity** — Email archives preserve institutional knowledge and communications even when mail servers fail or accounts are inadvertently deleted. - **Ransomware recovery** — When ransomware encrypts an email server, archived messages remain intact and recoverable from an independent archive. Microsoft 365 includes basic archiving features (In-Place Archive, Litigation Hold), but a dedicated third-party archiving solution offers deeper indexing, longer retention at lower cost, and independence from the primary mail platform. Ashton Solutions evaluates and deploys archiving solutions sized appropriately for Ohio businesses from 10 to 500+ users. ## Is Employee Email Security Training Actually Effective? No email security technology stack eliminates human risk — and attackers know it. **The SANS Institute reports that simulated phishing click rates drop from approximately 30% to under 5%** when employees participate in monthly phishing simulations combined with targeted micro-learning. Annual training alone moves the needle barely at all. An effective security awareness program for an Ohio business includes: - **Baseline phishing simulation** — Establish where your employees currently stand before training begins. - **Monthly simulated phishing campaigns** — Rotating templates that reflect current threats (invoice fraud, shipping notifications, Microsoft 365 credential harvesting). - **Immediate teachable-moment training** — When an employee clicks a simulated phish, they receive instant micro-learning rather than waiting for the next scheduled class. - **Quarterly formal training modules** — Cover BEC recognition, password hygiene, MFA, safe email practices, and reporting procedures. - **Metrics and reporting** — Track click rates, training completion, and improvement over time for management review. Ashton Solutions delivers managed security awareness training powered by leading platforms, included within our managed IT services agreements for Northeast Ohio clients. We handle scheduling, content updates, and reporting so your team stays protected without added IT overhead. ## What Does a Complete Email Security Stack Look Like for an Ohio Business? Effective email security is not a single product — it is a layered architecture. For most Ohio businesses in the 10 to 500 employee range, a best-practice email security stack includes: | Layer | Technology | Purpose | | --- | --- | --- | | Authentication | SPF + DKIM + DMARC (p=reject) | Prevent domain spoofing and impersonation | | Gateway Filtering | Microsoft Defender for Office 365 / EOP | Block spam, malware, and known phishing at delivery | | Advanced Threat Protection | Safe Links + Safe Attachments | Stop zero-day threats and malicious URLs post-delivery | | Encryption | Microsoft Purview OME / S/MIME | Protect sensitive data in transit and at rest | | Archiving | Dedicated cloud archive | Compliance, e-discovery, and business continuity | | Identity Protection | MFA on all email accounts | Prevent account takeover even if credentials are stolen | | Human Layer | Security awareness training + phishing simulation | Reduce employee susceptibility to social engineering | Each layer addresses a different attack vector. Removing any single layer creates a gap that sophisticated attackers — who probe defenses systematically before launching an attack — will find and exploit. ## Ready to Strengthen Email Security for Your Ohio Business? **Ashton Solutions** is a managed IT services provider headquartered in **Beachwood, Ohio**, serving businesses across the Greater Cleveland metropolitan area and Northeast Ohio. Our email security managed IT team conducts a comprehensive email security assessment — covering authentication records, Microsoft 365 licensing gaps, encryption posture, archiving compliance, and employee vulnerability — and delivers a prioritized remediation roadmap with no obligation. Whether you are a healthcare practice in Beachwood, a professional services firm in downtown Cleveland, a manufacturer in the western suburbs, or a financial services company anywhere across Ohio, we tailor email security solutions to your specific compliance requirements and risk profile. [Schedule Your Free Email Security Assessment](https://www.ashtonsolutions.com/contact/) Call us at **(216) 245-5656** or visit [ashtonsolutions.com/contact](https://www.ashtonsolutions.com/contact/) to speak with an email security specialist today. Protect your inbox — protect your business. --- ### Frequently Asked Questions: Email Security for Ohio Businesses #### What is the biggest email security threat facing Ohio businesses? Business Email Compromise (BEC) is the costliest threat, with the FBI recording over $2.9 billion in losses in 2023. Phishing attacks remain the most common entry point, accounting for 36% of all breaches (Verizon DBIR 2024). #### Do I need SPF, DKIM, and DMARC — all three? Yes. All three protocols serve distinct functions and collectively provide complete domain authentication coverage. Deploying only one or two leaves gaps attackers routinely exploit to spoof your domain. #### Does Microsoft 365 include advanced email threat protection? Basic plans include Exchange Online Protection. Advanced threat protection (Safe Links, Safe Attachments, anti-phishing) requires Microsoft Defender for Office 365, included in Business Premium or available as an add-on. Many Ohio businesses are unknowingly under-licensed. #### Is email archiving required for Ohio businesses? Requirements vary by industry. Healthcare, financial services, and legal firms face mandatory retention periods. Even unregulated Ohio businesses benefit from a 7-year email retention policy as a legal and operational safeguard. 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The FBI 2023 Internet Crime Report recorded over $2.9 billion in BEC losses nationwide. Phishing attacks remain the most common entry point, accounting for 36% of all data breaches according to Verizon 2024 DBIR. Ohio businesses, particularly small and mid-sized companies in the Cleveland metro area, are frequent targets because they often lack enterprise-grade email security controls." }, "name" : "What is the biggest email security threat facing Ohio businesses in 2024?" }, { "@type" : "Question", "acceptedAnswer" : { "@type" : "Answer", "text" : "SPF (Sender Policy Framework), DKIM (DomainKeys Identified Mail), and DMARC (Domain-based Message Authentication, Reporting, and Conformance) are DNS-based email authentication protocols. SPF defines which mail servers can send on your domain behalf. DKIM adds a cryptographic signature to every outbound message. DMARC ties them together and tells receiving mail servers what to do when a message fails authentication — quarantine it or reject it outright. You need all three for complete protection; deploying only one or two leaves exploitable gaps that cybercriminals routinely use to spoof your domain." }, "name" : "What are DMARC, DKIM, and SPF, and do I need all three?" }, { "@type" : "Question", "acceptedAnswer" : { "@type" : "Answer", "text" : "Microsoft 365 includes Exchange Online Protection (EOP) in all business plans, which provides basic spam and malware filtering. However, advanced threat protection — including Safe Links, Safe Attachments, anti-phishing policies, and Attack Simulator — requires Microsoft Defender for Office 365 Plan 1 or Plan 2 (formerly Office 365 ATP). Many Ohio small businesses using M365 Business Basic or Standard are unknowingly running without these critical layers. A managed IT provider like Ashton Solutions can audit your current Microsoft 365 licensing and enable the right protections." }, "name" : "Does Microsoft 365 include built-in email security for Ohio businesses?" }, { "@type" : "Question", "acceptedAnswer" : { "@type" : "Answer", "text" : "A Business Email Compromise scam occurs when an attacker impersonates a trusted executive, vendor, or partner to trick an employee into transferring funds or sensitive data. BEC attacks do not require malware — they rely on social engineering and spoofed or hacked email accounts. Prevention requires a layered approach: DMARC enforcement to stop domain spoofing, multi-factor authentication on all email accounts, employee security awareness training, and a verified callback procedure before any wire transfer. Ashton Solutions implements all four layers as part of its managed email security service for Cleveland-area businesses." }, "name" : "What is a Business Email Compromise (BEC) scam and how can Ohio companies prevent it?" }, { "@type" : "Question", "acceptedAnswer" : { "@type" : "Answer", "text" : "Yes. Healthcare organizations must encrypt email containing Protected Health Information (PHI) under HIPAA. Financial services firms face similar requirements under GLBA. Ohio data protection law (ORC 1347 / SB 220) encourages encryption as a safe-harbor defense. Beyond legal compliance, encrypting email protects against interception on public networks and prevents unauthorized access if an account is compromised. Microsoft 365 Message Encryption (OME) and S/MIME are the most common solutions for Ohio businesses already on the Microsoft platform." }, "name" : "Is email encryption required for Ohio businesses in regulated industries?" }, { "@type" : "Question", "acceptedAnswer" : { "@type" : "Answer", "text" : "Retention requirements vary by industry. HIPAA requires medical records for a minimum of 6 years. SEC Rule 17a-4 requires broker-dealers to retain email for 3 to 6 years. Ohio public records law requires government entities to follow the Ohio Records Retention Schedule. For most private Ohio businesses, a 7-year retention policy covering financial communications is a defensible baseline. A dedicated email archiving solution ensures records are tamper-proof, searchable, and available for legal discovery." }, "name" : "How long should Ohio businesses retain email records?" }, { "@type" : "Question", "acceptedAnswer" : { "@type" : "Answer", "text" : "Security awareness training should be continuous, not annual. Research from the SANS Institute shows that phishing simulation training reduces click rates from roughly 30% to under 5% when conducted monthly. A best-practice program combines quarterly formal training modules with monthly simulated phishing campaigns and immediate micro-learning when an employee clicks a test link. Ashton Solutions delivers managed security awareness training as part of its comprehensive managed IT services for businesses in Beachwood, Cleveland, and across Northeast Ohio." }, "name" : "How often should employees receive email security training?" } ] } ```