Does verification make cold email safe?

It removes one major risk, which is bounces. It does not address spam complaints, consent or the laws that apply to your outreach, so check those separately.

What bounce rate should I aim for?

As a rule of thumb, keep hard bounces under 2%. Above 5% puts your sender reputation at real risk.

Should I email catch-all addresses?

Often yes, carefully. They can be real, but verification cannot confirm them. Send to them in smaller batches, apart from your confirmed addresses.

Use case

Clean sales lists before you send outreach

Prospect data decays as people change jobs. Sending to stale lists raises your bounce rate and can damage the domain your whole team sends from.

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When to verify

Verify immediately before a list goes into a sequence, not when it was first collected. A list that was clean six months ago may not be clean now.

Before importing any bought or exported list.
Before re-engaging contacts you have not emailed in months.
As new leads enter your CRM, through an automation step.

How to handle each result

Business domains are often catch-all, so sales lists tend to return more risky results than consumer lists. Removing all of them can throw away good prospects.

deliverable: send.
undeliverable: remove it, and do not retry.
risky with reason catch_all: send in small batches, separately, and watch the bounce rate.
risky with reason role_account: remove these from personal outreach, because info@ and sales@ rarely reach a decision maker.
unknown: hold it and verify again later.

Automate it in your stack

For a one-off list, upload a CSV in the dashboard. For a steady flow of leads, add an HTTP step in Zapier, Make or n8n so that each new contact is checked before it reaches a sequence.

Next steps

FAQ

Frequently asked questions.

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When to verify

Verify immediately before a list goes into a sequence, not when it was first collected. A list that was clean six months ago may not be clean now.

Before importing any bought or exported list.

Before re-engaging contacts you have not emailed in months.

As new leads enter your CRM, through an automation step.

How to handle each result

Business domains are often catch-all, so sales lists tend to return more risky results than consumer lists. Removing all of them can throw away good prospects.

deliverable: send.

undeliverable: remove it, and do not retry.

risky with reason catch_all: send in small batches, separately, and watch the bounce rate.

risky with reason role_account: remove these from personal outreach, because info@ and sales@ rarely reach a decision maker.

unknown: hold it and verify again later.