Continuous monitoring Inbox signal drift Free visibility

Free outbound email monitoring.
So you see inbox problems before revenue drops.

Inboxsy continuously monitors the signals mailbox providers use to judge your outbound email. When trust, engagement, or reputation starts to drift, you see it early, before replies fall off.

Create a free account

Core monitoring is free. No card. No trials.

What Inboxsy does

Most teams only notice deliverability after replies slow or deals stall. Inboxsy exists to show you what’s changing underneath, quietly, continuously, and before it becomes obvious.

Monitor the signals providers care about

Inboxsy tracks authentication, behaviour, and reputation signals that mailbox providers use to judge outbound email.

See where email actually lands

Run placement checks to confirm whether messages are reaching inbox, spam, or somewhere in between, before results slip.

DMARC reporting

A simple view of who’s sending as your domain, what passed, what aligned, and what’s drifting over time.

The three pillars mailbox providers care about

Inbox placement is shaped by three forces. Inboxsy groups monitoring around them to keep the story simple.

Inboxsy doesn’t change these signals. It shows you how they’re moving.

Trust

Are you configured correctly and behaving like a real, well-run sender?

Authentication Domain setup Consistency

Engagement

Do recipients treat your email like something they want?

Reply signals User behaviour Content signals

Reputation

How do providers score your sending over time?

Bounces Complaints Placement drift

Inboxsy doesn’t promise outcomes. Mailbox providers make the final decision. Inboxsy gives you monitoring and visibility aligned to how they judge outbound email.

Who this is for

Teams where email must work

If email is tied to revenue, operations, fundraising, recruitment, or customer success, you need early warning when inbox delivery starts slipping.

People who want visibility, not hacks

Inboxsy is built for teams that want to understand what’s happening before reaching for fixes. If you’re looking for shortcuts or guarantees, this isn’t that.

Common questions

Is the core outbound monitoring really free?

Yes. The core monitoring is free. You can create an account, connect a mailbox, and use the monitoring features without a card.

What happens if Inboxsy shows a problem?

Nothing changes automatically. Inboxsy shows you what’s drifting and why it matters. Some teams act internally. Others want help understanding or fixing it. The data is yours either way.

Do you guarantee inbox placement?

No. Mailbox providers make the final decision. Inboxsy gives you visibility into signals and placement so you can detect drift early.

Is this for cold email?

Inboxsy is built for legitimate outbound sending where teams want stable delivery and clear monitoring.

Start monitoring for free

Get ongoing visibility into trust, engagement, reputation, DMARC reporting, and inbox placement.