Inbox Spam Filter
AI spam scoring for HubSpot Shared Inbox
Inbox Spam Filter integrates with HubSpot so your team spends less time on junk pitches and more time on real conversations.
Get Started for FREE
Illustrative demo — counters reset each visit and are not live product metrics.
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Available on the HubSpot Marketplace — Inbox Spam Filter is a HubSpot technology partner.
Spam Cost Calculator
Estimate time and money lost to spam. Assumes about 30 seconds per message to skim and dismiss.
0–1000 messages
$25–$250 / hour
ROI vs a $25/mo Inbox Spam Filter subscription, assuming you recover the handling cost estimated above.
Interactive Spam Test
Which ones would you reply to? You are the filter—one message at a time.
Each round includes 6 spam and 4 real messages in random order. Not a live API—illustrative samples only.
How It Works
1. Incoming emails & messages
All conversations flow into your HubSpot shared inbox.
2. Gemini AI scores each message
Configurable spam threshold (default 70). Custom instructions on Basic+.
3. Spam flagged, real messages delivered
Only genuine leads reach your team. CRM stays clean.
Inside the App
HubSpot inbox spam filtering with Gemini AI and portal-level shared settings—Overview, Scoring, Notifications, and Billing in one connected app.
Browse setup guides for step-by-step help with each tab.
Built for Team Efficiency and Safety
Save time
Stop manually triaging. Let AI handle spam so you focus on real leads.
Keep CRM clean
Fewer junk contacts and fake leads. Better data for sales.
Explainable filtering
Every flagged message shows an AI score and Reasoning column so your team trusts the filter.
Portal-wide settings
One Scoring, Notifications, and Billing config for the whole HubSpot portal—no per-user setup.
What teams say about cleaner shared inboxes
Pricing
Choose a plan that fits your volume. Start free, upgrade when you need more.
Starter plan
Everything you need to get started with spam filtering.
Included:
- Up to 500 emails per month
- Shared inbox filtering
- Email / AI support
- Custom rules
- Strip email addresses (privacy)
- Chat support
Basic plan
For growing teams that need more volume and control.
Included:
- 1,001 – 5,000 emails per month
- Shared inbox filtering
- Custom rules
- Chat support
- Strip email addresses (metadata + body only)
Pro plan
Added flexibility at scale for larger teams.
Included:
- 5,001 – 20,000 emails per month
- Shared inbox filtering
- Custom rules
- Chat support
- Strip email addresses
Need more than 20K emails or run app in your own VPC?
Contact usHow data flows with HubSpot
Inbox Spam Filter connects to your HubSpot portal with OAuth. It reads Shared Inbox conversation content to score messages, and can write contact property updates (such as spam_filter_status) when spam is detected. Message text used for scoring may be sent to Google Gemini for evaluation.
Conversations
Read Shared Inbox messages for AI spam scoring.
Contacts
Update related contacts when spam tagging is enabled.
Contact properties
Write properties such as
spam_filter_status.
On Basic and Pro, toggle Strip email addresses for AI evaluation so addresses are removed from From, subject, and body before scoring—your HubSpot records stay unchanged. Starter does not include this feature.
Full details: Privacy Policy · HubSpot setup guide · Strip email addresses
Ready to stop spam in your HubSpot inbox?
Install the app in minutes. No credit card required for the free Starter plan.
No HubSpot Account? Get It Free!