Free, no account needed

Someone gave you an address to check emails. Here is what it is.

A business you deal with uses Sender Registry to check emails that claim to be from them. If something lands in your inbox and you are not sure it is really them, you forward it to the address they gave you and we tell you.

What happens when you forward one

We look at who actually sent it, not just the name shown at the top. We follow the links to see where they really go. We check the sender against what the wider network already knows. Then we reply, usually within minutes, in plain language.

You do not need an account, you do not need to sign up, and it costs you nothing. The business pays for this, not you.

What we tell you

Two separate things, because they are genuinely different questions. Whether the email is dangerous, and whether it really came from the business it claims. An email can be perfectly safe and still not be from them, and it can be genuinely from them and still be worth a second look.

If we cannot tell, we say so. We will never tell you an email is safe when what we mean is that we did not find anything.

What the business sees

If someone was impersonating them, they see it, which is the point: it lets them warn other customers. If the email turns out to have nothing to do with them, they are told a check happened and nothing else. Your email is not theirs to read.

If the email is about money

Do not act on it until you are sure. If it asks you to pay something, or says bank details have changed, phone the business on a number you already had, from an old invoice or their website, never a number in the email itself. That one habit stops most invoice fraud, whatever we tell you.

You can check things yourself too

These are free and need no account.

Do you have to use their address?

No. If you would rather the business was not involved, for instance because you suspect the problem is at their end, forward it to instead. Same check, same answer, and they are not told.