brandHow to stop phishing emails at your business
Built-in Microsoft 365 and Google filtering catches obvious spam, but targeted phishing gets through: a fake invoice from a vendor you really use, a "DocuSign" link, a message that looks like it came from the owner asking the bookkeeper to buy gift cards. Stopping those takes layers.
- Advanced filtering that inspects links and attachments at the moment someone clicks, not just when the email arrives.
- Domain authentication (SPF, DKIM and DMARC) so criminals cannot easily send mail that appears to come from your domain.
- Impersonation protection that flags lookalike domains and display-name tricks.
- Account takeover detection that alerts on impossible-travel sign-ins and suspicious inbox forwarding rules.
- Short, regular staff training with simulated phishing so people recognize the real thing.
Business email compromise in a small market
In a valley where everyone knows everyone, attackers lean on trust. Real estate closings, contractor payments and property-management wire transfers are frequent targets because a single altered bank detail in a reply thread can redirect a large payment. We configure alerts for new forwarding rules and unusual sign-ins, and help you set a simple verbal-verification policy for any payment change.
If a mailbox has already been compromised, call us immediately. We reset access, revoke sessions, remove malicious rules and review what was sent. See virus & malware removal for broader incident response.
Signs it’s time for Email Security & Spam Protection
- Staff regularly receive emails pretending to be you or a vendor.
- Customers have received fake emails from your domain.
- Someone clicked a link and was asked to “re-enter” their password.
- Your bookkeeper has been asked by email to change a vendor’s bank details.
- You have never checked whether DMARC is set up on your domain.
If two or more of these sound familiar, take the free security check or book a free cybersecurity assessment.
How our Email Security & Spam Protection process works
Email security review
We check filtering, domain records, sign-in logs and forwarding rules.
Lock down the domain
SPF, DKIM and DMARC are published and monitored.
Add advanced filtering
Link and attachment inspection plus impersonation protection go live.
Train and test
Short training and simulated phishing build the habit of checking twice.
What’s included
- Advanced phishing, malware and spam filtering
- SPF, DKIM and DMARC setup and reporting
- Impersonation and lookalike-domain protection
- Suspicious sign-in and forwarding-rule alerts
- Phishing simulations and security awareness training
- Compromised mailbox response
Who it’s for
- Any business that moves money by email
- Real estate, title, construction and financial firms
- Offices that have already had a compromised mailbox
- Businesses completing a cyber-insurance application
What affects the price
Every quote is flat and in writing. These are the factors that move the number:
| Factor | Why it matters |
|---|---|
| Number of mailboxes | Advanced filtering and training are priced per user. |
| Existing licensing | Microsoft 365 Business Premium already includes Defender for Office 365. |
| Domains | Each sending domain needs its own SPF, DKIM and DMARC setup. |
| Training frequency | Monthly or quarterly phishing simulations. |
Why valley businesses are targeted
Resort economies move a lot of money between people who rarely meet face to face: owners who live elsewhere part of the year, property managers, contractors and title companies. That makes payment-change and impersonation emails especially effective here. Contractors in Gypsum and Eagle-Vail and brokerages in Vail are frequent targets.
“Todd has helped get our team protected at a level we had no idea existed. As an Insurance Agency, we know the importance of protecting our clients data, Todd has taken that to a new level!”
Frequently asked questions
What is the best spam filter for Microsoft 365?
Microsoft Defender for Office 365, included in Microsoft 365 Business Premium, is a strong baseline when configured correctly. Many businesses add a dedicated email security layer for better impersonation detection. The right choice depends on your risk and compliance requirements.
What is DMARC and does my small business need it?
DMARC is a DNS record that tells receiving mail servers what to do with email that claims to be from your domain but fails authentication. Yes, every business should have it. Major mailbox providers now expect it, and it makes your domain much harder to spoof.
What should I do if an employee clicked a phishing link?
Disconnect the device from the network, have the employee change their password from a different device, and call your IT provider right away so sessions can be revoked and the account reviewed for forwarding rules or sent mail.
Why are phishing emails getting through our spam filter?
Targeted phishing often comes from real, compromised accounts or lookalike domains, so it passes basic spam checks. Advanced filtering inspects links when they are clicked and flags impersonation attempts.
How do I stop people spoofing my business email address?
Publish SPF, DKIM and a DMARC policy for your domain, then move the DMARC policy to quarantine or reject once legitimate mail is confirmed to pass.