Send an e-invoice by email

When you make or fix a German or Austrian e-invoice, Klarbon can send it to your customer for you. The result offers Send by email: enter one address, choose the language, and Klarbon checks the file again and sends it with your address for replies. Klarbon keeps no copy, only a receipt on your account page.

Who can send, and which invoices?

The action shows on the result of Make and Fix when the invoice qualifies, and nowhere else. It costs no credit.

What happens before it goes?

Klarbon checks the file with the same rules as Check. If the check finds an error, the invoice is not sent: the answer says so in one sentence and links Fix. Warnings do not stop it. The check is part of sending and uses nothing from your daily checks.

What are the limits?

Each send goes to one recipient. An account can send to at most 20 recipients a day (counted per UTC day), and Klarbon has a daily limit across all accounts. A copy to your own address does not count as a recipient. When a limit is reached, or sending is paused, the answer says so: download the invoice and attach it to an email yourself.

What does my customer receive?

An email from "your business via Klarbon" at invoices@send.klarbon.app, with your account's address as the reply address. It is Klarbon's fixed text in the language you chose: who sent it, the invoice number, the issue date, and the amount due and due date where the invoice has them. The e-invoice is attached under its invoice number, with a readable PDF beside a bare XML file. The email says the file opens free at klarbon.app without uploading it. It carries no text of yours, no advertising, no tracking pixel and no images. A reply goes to you, not to Klarbon.

Can the recipient say no?

Yes. The footer of every email says Klarbon sent it on your behalf and keeps no copy, and links "Do not accept invoices sent through Klarbon at this address". The page that link opens changes nothing until its button is pressed. After that, Klarbon refuses every invoice for that address and tells the sender to send it from their own mail app. Klarbon keeps a keyed hash of the address for this, never the address itself, until the address asks to accept invoices again on the same page.

What is kept, and what does Sent mean?

Your account page lists your last 20 sends: the recipient, the format, the time, and Sent or why it did not go. Sent means the email was handed over for delivery, not that it arrived. Each line is deleted 90 days after the send, and all of them with your account. The file itself is not kept. The email passes through the email service's queue, and the recipient's mailbox keeps its own copy, as what happens to your files explains.

You send the invoice in your own name: send it only to someone you may send it to. The terms of service set this out in the section on sending invoices.