Managed security
The convincing ones
don’t have typos anymore.
We block malicious attachments, spam and credential-harvesting email before it reaches anyone, then lock down your own domain so nobody can send as you. The message asking for new bank details waits until someone checks by phone.
- Malicious attachments, opened elsewhere firstWhat email security coversWatching
- Spam, goneWhat email security coversWatching
- Credential harvestingWhat email security coversWatching
- SPF, DKIM and DMARC, finishedWhat email security coversWatching
- Impersonation and payment fraudWhat email security coversWatching
- Every block, with its reasonWhat email security coversWatching
Foothills Digital—Sentrello Premier Partner
- AWS
- Azure
- Google Cloud
- DigitalOcean
- On-premises Linux
- On-premises Windows
Every one of our people holds active certifications on the platforms they work on.
Sentrello is our only partnership. On the clouds, it's our people who hold the certifications. We don't claim a partner tier, and we'll keep saying so until that changes.
Where this usually starts
The one that works looks like it came from you
Your spam filter catches spam. It was never built for a message from your own CEO asking for a quick favor before a flight.
- The phish that worked had your logo, your signature block and perfect spelling.
- Your DMARC record says p=none. It blocks nothing, and its reports go to an address nobody checks.
- Accounts payable changed a supplier’s bank details because of a reply in a thread that already existed.
- Someone’s emailing your staff as the owner from a free webmail account, and a few of them reply.
- The attachment was a PDF. The PDF held a link. The link opened a login page that looked exactly like yours.
What we do instead
Treat the inbox like the front door it is
Filtering handles the bulk: known-bad attachments, links that go somewhere they shouldn’t, and senders whose reputation fell apart this morning. Then we do the part most setups skip, which is proving your own domain. SPF, DKIM and a DMARC policy that actually rejects, so nobody can send as you. Whatever still reaches an inbox has earned its place, and a convincing one that slips through gets a rule written for it, not a shrug.
How it works
How email defense works
Four of these five steps happen before a message gets anywhere near a person.
Filter before it lands
Every message gets scored on sender, content, attachment and destination before it reaches a mailbox. Known-bad goes nowhere. Suspicious gets held for a look, with the reason logged.
Prove your domain is yours
SPF lists who may send for you. DKIM signs what you send. DMARC tells everyone else what to do with the rest. We move you from none to quarantine to reject, reading the reports along the way so no legitimate sender gets caught in the move.
Watch for your own names
Mail signed by your finance director from a domain one letter off yours isn’t a coincidence. Display-name and lookalike-domain rules flag it before anyone replies.
Stop the money leaving
Invoice fraud doesn’t look like an attack. It looks like a supplier updating their bank details. Every request like that gets held for a call to a number you already had on file.
Reset, recall, write the rule
If something gets through, the account is reset and its sessions killed before the attacker gets a second try. The message is pulled from every inbox it reached, and a new rule stops the next one from landing.
What email security covers
Malicious attachments, opened elsewhere first
Every attachment is detonated somewhere disposable before a person opens it. A booby-trapped invoice goes off in our sandbox, not on your bookkeeper’s laptop.
Spam, gone
The bulk junk is filtered out before it lands, with a quarantine you can check if something legitimate went missing.
Credential harvesting
The login page that copies yours pixel for pixel. Links are rewritten and checked at the moment of the click, so a page that was clean at nine and a harvester by eleven gets caught at eleven.
SPF, DKIM and DMARC, finished
Plenty of domains publish DMARC at none as a safe first step and never take the second. We take it. Senders inventoried, records aligned, policy at reject, and the reports actually read.
Impersonation and payment fraud
Rules for your names, titles and lookalike domains, plus a hold on any request to change bank details or rush a transfer. Those get verified by voice, never by reply.
Every block, with its reason
What was blocked, why, and who reported what. When something does get through, you can see exactly how, and that’s the difference between a fix and a guess.
Related
Security Awareness Training
Phishing simulations and short training modules, run often and never used as a stick. The number we care about is how many people report the fake, because that’s what saves you when the real one turns up.
Identity & Access Management (IAM)
Multi-factor authentication, single sign-on and privileged accounts, managed so a stolen password isn’t enough on its own. Admin rights get borrowed for an hour instead of kept for a career.
Managed Detection & Response (MDR)
Active threat hunting through your endpoint data for the intruder no alert caught, and a fast response the moment we find one. The SOC watches what fires. MDR goes looking, with your written permission to act.
Which domains, and who sends for them?
Your mail domains, the platform behind them, and every service that sends on your behalf.
Send that over and we’ll read your SPF, DKIM and DMARC records back to you in plain English, tell you who can currently send as you, and say what we’d fix first.
- What we arePlan, create, launch, maintain
- What we areSentrello Premier Partner
- What we areEvery quote written for you