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Email the right person first time: verified work emails from Otto

Guessed addresses bounce, and every bounce hurts the emails after it. Otto looks each person up and verifies the address before you send. In a real run on five people with no email on file, it found all five: four verified, one flagged before anything was sent.

Amaan AslamCo-Founder · GTM PUBLISHED READ4 MIN
5people looked up5addresses found4verified deliverable1flagged before sending

An address that looks right can still bounce. A guessed first.last@ address often does, and every bounce makes the next email from that mailbox a little less likely to land.

With Otto, your team stops guessing. Otto looks the person up when you ask, through more than 20 sources, and three separate checks have to agree before an address counts as verified.

What changes for your team

  • No guessed addresses. Every email in a sequence is one Otto found and checked, so your first message reaches the person you meant.
  • A healthier mailbox. Fewer bounces means your domain keeps its reputation, and the next campaign lands too.
  • Risky addresses flagged before you send. Anything Otto can’t confirm is labelled, so you decide whether to email it or reach that person on LinkedIn.
  • You pay for verified addresses only. A lookup that finds nothing costs nothing.

How the check works

When you ask for an email, Otto:

  1. Searches for the person’s work address across more than 20 sources, starting from their name and company, or their LinkedIn profile.
  2. Runs three separate checks on what it finds.
  3. Marks the address deliverable only when the checks agree. Anything less is labelled, so you decide what to do with it.

A real run

Five people in a pipeline, all founders or heads at small software companies, had no email on file. Otto was asked for each person’s work email, the same way you press Find email on a contact.

RoleCompanyResult
CEO and co-founderSmall software company, LondonFound, deliverable
Managing directorFour-person software studio, UKFound, marked risky
Head of digitalTen-person digital agency, UKFound, deliverable
Founder and CEOSeven-person software consultancy, CologneFound, deliverable
Co-founder20-person sustainability software company, GhentFound, deliverable

All five came back within a few minutes, and each address landed on its contact as soon as its checks finished.

The flagged one. For the managing director, Otto found an address but could not confirm that the mailbox accepts mail, so it marked it risky instead of verified. That is the check doing its job: you would leave that person out of a first email and reach them on LinkedIn instead.

At scale

On our published benchmark of live people tasks, 91.2% of the contacts Otto delivered were verified. In a live lead verification run, it delivered 20 out of 20. Both are on our benchmarks page, with the method.

What it costs

Verified emails are an add-on, separate from credits, and charged only when an address is delivered. A miss costs nothing. The five lookups above came out of the workspace’s email allowance and didn’t touch its credits.

Try it

Open any contact in Leads and press Find email, or select a list and fill the email column in one go. From Claude, ChatGPT or Gemini, you can ask Otto to find the work emails for everyone in a workbook. It tells you what that will cost before it runs.

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