Bot opens inflate your metrics and destroy your Gmail reputation. OutboundHQ detects the fakes, tracks real replies, and keeps your deliverability clean — at any send volume.
Free to start · No credit card · Works with your SMTP
No bloat. No CRM upsells. Just the infrastructure that makes your emails arrive, get read, and convert.
AWS cloud IP ranges, rapid-fire timing heuristics, and Chrome/Linux scanner patterns — detected at the event level. Bot opens never pollute your real engagement metrics.
Proprietary signalsEvery bounce, spam complaint, and reply triggers an instant event via Postmark. Bounced addresses are auto-suppressed before you can damage your sender score further.
Auto-suppress bouncesMulti-step drip campaigns with conditional branching — pause a contact if they open, skip step 2 if they reply. Deliver the right follow-up every time.
Conditional branchingSecurity scanners and email proxies trigger "opens" before your prospect ever sees the email. OutboundHQ strips the noise so you see what's real.
You think the campaign is crushing it. Gmail is quietly flagging your domain.
Accurate data, clean suppression list, sender score stays healthy.
Start your first campaign in 60 seconds. Free forever for small volumes.
Start Sending FreeNo credit card · Works with custom SMTP · Cancel any time