Microsoft 365 spam filtering that works better
Put SpamHero in front of Microsoft 365 for cleaner inbound mail, faster troubleshooting, and optional outbound delivery when you want reputation protection on messages leaving your tenant.
Microsoft 365 spam filtering that works better
Put SpamHero in front of Microsoft 365 for cleaner inbound mail, faster troubleshooting, and optional outbound delivery when you want reputation protection on messages leaving your tenant.
Where SpamHero helps Microsoft 365 teams
Filter before Exchange Online
SpamHero receives your inbound mail first, filters it, then delivers clean messages to your Microsoft 365 mail host.
Reduce direct-to-M365 bypass
Use fixed SpamHero delivery IPs and Microsoft 365 connection filtering to keep bypass attempts from skipping the filter.
Fix delivery problems
Search delivery logs to see whether Microsoft 365 accepted a message and where it was routed.
Protect outbound reputation
Optional outbound filtering can help stop spam campaigns from damaged accounts before they hurt your domain reputation.
SPF and DKIM guidance
SpamHero provides the records and settings needed to support better authentication results.
Inbound and outbound paths
Use SpamHero for inbound filtering only, or add outbound connectors when Microsoft 365 should send through SpamHero too.
Microsoft 365 setup, step by step
SpamHero's Microsoft 365 setup uses normal mail-flow controls: route inbound MX through SpamHero, deliver clean mail to the Microsoft-assigned host, and optionally add an outbound connector for messages leaving Microsoft 365.
- Use your Microsoft 365 mail host as the SpamHero delivery host
- Point MX records to SpamHero filtering servers
- Update Microsoft 365 connection filtering for SpamHero IPs
- Add outbound connector support when you want outbound filtering
Put a stronger filter in front of Microsoft 365
Start with a SpamHero plan and configure Microsoft 365 mail flow from there.
Start free trial