Your team should be reading emails, not deleting them.
45% of all email is spam. Without proper filtering, your team wastes hours every week on inbox noise. IP Four deploys enterprise-grade multi-layer filtering that keeps inboxes clean and productive.
Multi-layer filtering that keeps inboxes clean and productive.
Our anti-spam stack goes far beyond what Microsoft 365 provides out of the box, combining reputation data, content analysis, and machine learning.
Multi-Layer Spam Filtering
Reputation-based filtering, content analysis, and machine learning work together to catch spam at every stage. Far beyond the basic filtering built into Microsoft 365.
Bulk Mail Management
Newsletters, marketing emails, and automated notifications separated from genuine business correspondence. Your team sees what matters without wading through noise.
Greylisting and Reputation Checks
Greylisting and IP reputation checks stop the majority of spam at the gateway before content analysis. Eliminate 80% of spam before it consumes your filtering resources.
Content and Keyword Filtering
Custom keyword lists, HTML analysis, and URL checking catch spam based on what the message contains, regardless of where it originates. Policy enforcement built in.
Quarantine Management
Suspected spam held in quarantine with daily digest notifications. Users can review and release legitimate emails without IT involvement. Admins have full visibility.
Allow and Block List Management
Organisation-wide, department-level, and per-user allow and block lists. Critical senders always get through. Known bad actors never do. Full audit trail maintained.
From audit to clean inboxes.
Inbox Noise Audit
We analyse your current email flow, spam volumes, and false positive rates. Identify exactly what is getting through and what legitimate email is being incorrectly blocked.
Filter Stack Design
Multi-layer filtering stack configured for your organisation. Policies set per department where needed. Quarantine rules and digest schedules configured.
Deployment and Baseline
Filters deployed in monitoring mode to establish baseline. Tuned over two weeks to minimise false positives before enforcement. User quarantine access configured.
Ongoing Tuning and Support
Monthly filter performance reviews. Policy adjustments as your business changes. Lancashire-based support for quarantine queries and whitelist requests.
How we have helped Lancashire businesses.
Inbox Overload Affecting Productivity
A Preston accountancy firm had staff receiving 80 to 100 spam emails per day. Time spent deleting spam and checking quarantine was measurably affecting billable hours.
Multi-layer filtering deployed. Spam volume reduced by 97%. Staff reported significant productivity improvement. IT support tickets for spam dropped to near zero.
False Positives Blocking Client Emails
A Blackburn law firm had their existing spam filter blocking legitimate client emails. Important correspondence was being lost in quarantine without notification.
Filtering policies retuned with per-sender whitelisting. Quarantine digest configured. Zero legitimate client emails lost in the following 6 months.
Malware Hidden in Spam Campaigns
A Lancashire healthcare provider was receiving spam campaigns containing malicious attachments designed to look like invoices and delivery notifications.
Attachment scanning added to spam filtering stack. Malicious attachment campaigns blocked at gateway. Staff awareness training completed for remaining risk.
Give your team back the time they spend on spam.
Our free spam audit measures your current inbox noise levels, identifies what is getting through, and shows you exactly how much time your team is losing. No cost, no obligation.