Same name, different person
Outlook may show a familiar name while the underlying mailbox belongs to someone else.
Free during early access
Outlook AutoComplete can make the wrong recipient look right.
Recipient Guard checks the address behind the name before the message leaves Outlook. It highlights risky recipients, explains why they look wrong, and shows likely alternatives so the mistake can be fixed before send.
The mistake usually looks ordinary
Most wrong-recipient emails do not start with a dramatic mistake. They start with a familiar name, a similar address, or an AutoComplete suggestion that feels safe. Recipient Guard makes that hidden risk visible before the email is sent.
The patterns Recipient Guard is looking for
Recipient Guard focuses on the recipient choices that are easiest to miss in Outlook and hardest to undo once the message has gone.
Right name, wrong domain
A matching prefix can hide the difference between a personal, old, supplier, or client domain.
Personal instead of work
A personal mailbox can look harmless in AutoComplete, but it may be the wrong place for the message.
External recipients
Recipient Guard adds a clear pause when an address outside your organisation is about to receive the email.
How Recipient Guard resolves it
The add-in sits at the final decision point: after the email is written, after the recipient is selected, but before Outlook sends it.
It catches the risky moment
The warning appears before send, when the mistake can still be fixed without recall, apology, or cleanup.
It explains what looks wrong
Users see the selected mailbox, the reason it was flagged, and known alternatives that may be intended.
It keeps email moving
Recipient Guard adds friction only where the recipient choice is risky or ambiguous, so normal sending stays practical.
Free during early access
Create an account, verify your email, and download the current build. Your account keeps download access, licence status, and future updates tied to the right address.
Step 1
Create a free account
Use the email address you want connected to Recipient Guard downloads, updates, and licence status.
Step 2
Download the add-in
Install the Outlook add-in and let it check recipients at the point you press send.
Step 3
Use it in real email
Try it with the everyday names, domains, and external addresses that create real risk.