Email Security in Galveston
Almost every loss at a small company starts in a mailbox. Someone clicks, someone pays the wrong account, or someone answers a message that looks exactly like it came from the boss. Sentinel-Pros locks down email for Galveston businesses so the message never arrives and the fake version of your domain never sends.
The Problem
The fraud that hurts island businesses is patient and specific. An attacker reads a compromised mailbox long enough to learn how your company writes, who signs off on payments, and when a closing or a large vendor invoice is coming. Then a message arrives from what looks like your title company, your property manager, your marine fuel supplier, or your own controller, with new banking instructions and a plausible reason for the change. Nothing about it triggers a spam filter, because it is a real message from a real mailbox or a domain built to resemble yours by one character. Meanwhile your own domain can be used to send convincing messages to your guests, patients, and customers if nobody has published the records that stop it.
The Solution
We treat email as a system to be configured and monitored, not a filter to be switched on. Advanced filtering handles the attachments and links, but the durable wins come from authentication records that stop anyone from sending as your domain, from rules that flag external mail claiming internal authority, and from monitoring for mailbox rules quietly forwarding your mail elsewhere. Sensitive messages get encryption that a clinic or an agency can defend during an audit. Configuration and monitoring are done remotely, which suits email work, and Galveston is inside our on-site area if staff training or a compromised device needs someone in the room. Pricing is scoped on a discovery call and delivered as a fixed monthly retainer.
Core Responsibilities
Stopping What Arrives
Protecting Your Own Domain
Inside the Mailbox
Engagement Process
Audit the Current State
We review your mail flow, your authentication records, your existing rules, and every service allowed to send as your domain. Most companies discover senders they forgot about and records that were never finished.
Harden and Authenticate
Filtering is tuned to your actual traffic and authentication records are moved toward enforcement in stages, so legitimate mail from your booking, billing, or marketing tools keeps arriving. Nothing is flipped without watching what it breaks.
Build the Human Control
Technology cannot approve a wire. We put a verification step in writing for any change to payment details, train the staff who would receive the request, and make it acceptable to slow a transaction down.
Monitor and Adjust
Reports are reviewed monthly, new senders are added deliberately, and blocked attempts are used to sharpen the rules. When a new fraud pattern shows up in your industry, the configuration changes with it.
More for Galveston Businesses
Common Questions
Microsoft 365 already filters our mail. Why add anything?
The built in filtering handles volume mail reasonably well and misses targeted fraud, which is what actually costs money. It also does nothing about your domain being spoofed to your own customers unless someone configures the records. Most of the work here is configuration and monitoring rather than another subscription.
A vendor sent us new wire instructions. How do we know it is real?
Assume it is not until a person confirms it by voice on a number you already had, never a number in the message. This is the single control that prevents the largest email losses, and it has to be policy rather than instinct. We write it into your procedures and train the staff who handle payments so refusing to rush is expected behavior.
Will locking down our domain break our booking or marketing email?
Not if it is staged properly, which is why we inventory every sending service first and move to enforcement gradually while watching the reports. Property management platforms, reservation systems, and email marketing tools all need to be authorized correctly. Rushing this is how companies end up with confirmations landing in guest spam folders.
We send records to physicians and clinics connected to UTMB. Is regular email acceptable?
Not for protected health information without encryption and an agreement covering it. We set up encryption that staff can actually use, because a control people bypass provides nothing. You also get logging that shows what was sent and how it was protected, which is what an auditor asks for.
Someone is sending fake reservation emails using our hotel name. Can that be stopped?
If they are sending as your exact domain, enforced authentication records shut that down. If they registered a similar domain, we cannot prevent the registration, but we can detect it, help you pursue takedown, and warn your guests and staff. The combination is what keeps your name from being used against your own customers.
Ready to get started?
BOOK A CONSULTATIONEmail Security for Galveston, Texas
Email fraud in Galveston follows the money the island moves. Beach house and condominium transactions bring title companies, realtors, and closing coordinators into email threads where a single redirected wire can erase a family's down payment, and criminals watch those threads specifically. Vacation rental and property management companies collect deposits from guests who have never met them, so a convincing message from a spoofed version of the company name is enough to take a payment and poison a reputation. Around the Port of Galveston, agents, chandlers, fuel suppliers, and marine services firms exchange invoices with counterparties they may only know by email, which is exactly the setting in which payment redirection succeeds. Clinics, therapy groups, and billing companies working alongside UTMB Health send patient detail every day and need encryption they can prove rather than assume. The insurance agencies and adjusting firms that grew up around American National move claim documents full of financial and medical information through mailboxes protected by a password and little else. On top of all of that sits hurricane season, when normal approval habits break down, staff are working from wherever they evacuated to, and an urgent message about a changed vendor account looks entirely reasonable. Email is where Galveston businesses lose money, and it is where the cheapest defenses live.
See the statewide overview of Email Security or all services available in Galveston.