Before you reply, ask hmm.

The second of doubt that stops a fraud. AskHmm verifies who’s really emailing you: the sender, their company and what they’re asking for. Then it tells you what to do before you hit reply.

Add to Chrome Get it for Outlook

Free to start: 10 deep checks a month. Pro comes with a 7-day free trial.

On your phone? Set AskHmm up from a computer. The Outlook add-in then works in the Outlook app on your phone too.

hmm… watching your inbox.

Try it

Give it an email. Watch it go hmm.

Pick a sample, press Check sender, and see what AskHmm finds.

From
To

All three are made-up examples: fictional people and companies.

Clear answers

Every hmm ends in a clear answer.

One look tells you where you stand, before you read a single detail.

Looks fine

Nothing it checked looks wrong. Stay alert for unusual requests anyway.

Checking…

Reading the sender, the company and the claim. A few seconds.

Hmm

Some details don’t add up. Confirm who this is before you share anything.

Stop

Key claims can’t be verified or look forged. Don’t reply until you’ve checked.

What it looks at

The three questions behind every hmm.

Who sent it?

  • Display names hiding a different address
  • Business titles sent from personal Gmail or Outlook accounts
  • Domains that imitate yours, a known brand, or someone already on the thread
  • SPF, DKIM and DMARC results, and replies redirected elsewhere

Is the company real?

  • How long the domain has existed, from registries and the Internet Archive
  • Whether any other website knows the company
  • Whether it has a working website, or a parked page
  • Whether the sender appears on the company’s site, on LinkedIn at that company, or anywhere else online
  • Mail records and DMARC policy

Does the ask hold up?

  • Buyers and investors who never name their firm
  • Requests to change bank details or pay an invoice today
  • Gift cards, secrecy and urgency
  • Signatures with no phone number or website
Works where you read email

Gmail, Outlook, and everything in between.

GmailIn Chrome, on any Google Workspace or personal account.Opens on its own
Outlook on the webMicrosoft 365 and Outlook.com, in Chrome.Opens on its own
Outlook appWindows, Mac, iPhone and Android, as an Outlook add-in.Check sender button
Any other webmailHighlight the email and click the AskHmm icon.Highlight to check
Privacy by design

AskHmm never reads your email without your say-so.

It asks first, then works on your device. Built around the GDPR’s principles: consent, data minimisation, and no profiles of you.

You choose what it reads

  • Nothing is read until you pick a mode
  • Full check: the open email, analysed on your device
  • Sender only: just the sender’s name and address, never the subject or message
  • Change it any time in AskHmm’s settings

Your email stays with you

  • Message text, subject and recipients never leave your device
  • Only the sender’s company domain and display name are looked up online
  • On Pro, image-only signatures are read on your device too
  • No ads, no tracking, no selling data

Nothing kept about you

  • No log of which emails you checked
  • Lookups are cached by company, never linked to you
  • Trusted senders are stored in your browser only
  • Ask for access or deletion any time: privacy policy
Pricing

Cheaper than one bad reply.

Free

€0
  • Unlimited basic checks: authentication, lookalikes, mismatched senders
  • 10 deep checks a month on the domain and the sender
  • Gmail, Outlook web and the Outlook app
Start free

Pro

€1a month, billed €12 a year

Founding price until 31 January 2027, yours for as long as you stay subscribed.

  • Unlimited deep checks
  • Claim checks for M&A, invoices, recruiters, press and legal notices
  • A suggested next step and safe reply for every risky email
Try free for 7 days

No charge for 7 days. Cancel before and you pay nothing.

Teams

€3per user a month, billed yearly · from 3 users
  • Everything in Pro, for every member of the team
  • Shared fraud alerts: when one person flags a fake sender, the whole team is warned
  • Company-wide lists: trusted suppliers and all your company domains, set once by your admin
  • One licence key for the whole team; add users any time
  • IT can deploy the Outlook add-in to everyone in one go
Try free for 7 days

No charge for 7 days. Cancel before and you pay nothing.

Pause. Ask hmm. Then reply.

The email stays on your device. AskHmm only looks up the sender’s domain and name, in public registries, on the sender’s own website and in public web search.

Add to Chrome Get it for Outlook