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Invoices by email — with your customer in one click.

Issue and send in one step: the email goes out in your customer’s language, with your text, your logo and the right attachment — PDF or e-invoice. Replies come straight to you, or send everything through your own mail server.

  • Invoices, quotes, cancellations and reminders — one click each
  • PDF or e-invoice — ZUGFeRD, XRechnung or Factur-X — attached automatically
  • Your own SMTP server on every plan
How it works

From “Issue & send” to your customer’s inbox.

  1. 01

    Issue & send

    One click in the editor or the list: the invoice gets its number, the PDF is archived and the email goes out.

  2. 02

    In your customer’s inbox

    In the document’s language, with your text and logo — and the right attachment: the PDF or the e-invoice of your company’s country.

  3. 03

    Sent — and replies reach you

    The invoice is marked “Sent”. When your customer replies, the answer lands in your own inbox.

Every email

Every email that goes out.

Each one with its own text, in English, German and French — ready from day one.

  • Invoices

    “Send”, “Issue & send” or “Resend” — with the PDF or the e-invoice attached.

  • Quotes

    Send a quote, or convert it and send the invoice in one step.

  • Cancellations

    Tick the box when cancelling, or send it later: the cancellation invoice with the original marked CANCELLED — for an e-invoice, the cancellation as an e-invoice too.

  • Quote withdrawals

    Withdraw a sent quote and let your customer know with a short notice — right away or later.

  • Reminders

    Payment reminder and reminders with their PDF — by hand or automatically at your send time.

  • Recurring invoices

    Set a series to “Issue & send” and every run goes straight to your customer.

Sending

Through UNENO — or your own mail server.

Two ways, one switch: start with default sending, connect your own server whenever you like.

  • On every plan — no upgrade needed
  • Switches only after a successful test email
  • Your password is stored encrypted
If a send fails, you see why — for example
  • Your mail server rejected the login. Check username and password under Settings → Sending.
  • Your mail server cannot be reached. Check host and port under Settings → Sending and try again.
Proof of sending

Sent when, to whom — on record.

“I never got it”? Every invoice and quote keeps its sends in its history: when it went out, to which address, through which server, by whom — and as which file.

  • Every send: date and time, recipient and copy, channel, who sent it and the file format
  • Only what really went out — a failed send is never logged as sent
  • Invoices and quotes; reminders, cancellations and withdrawal notices included
  • One timeline per document — next to issuing, payments and reminders
FAQ

Questions about sending by email

Short answers to what people ask us most.

How do I send an invoice by email?

With “Issue & send” in the editor or “Send” in the invoice list. The invoice goes to your customer’s email address — with your text in the document’s language and the PDF or e-invoice attached. Afterwards it is marked “Sent”.

What is attached to the email?

The invoice’s archived PDF — or, if it was issued as an e-invoice, the e-invoice of your company’s country: in Germany the ZUGFeRD invoice (a PDF with embedded data) or, for public authorities, the XRechnung as XML; in France the Factur-X (a PDF with embedded data). A cancellation sends one PDF with the original marked CANCELLED and the cancellation invoice; for an e-invoice, the cancellation comes as an e-invoice plus the stamped original.

What do I need to connect my own SMTP server?

Host, port, encryption, username and password, plus a sender address and name — your email provider lists them in its help pages. After saving, send a test email; only when the test succeeds does sending switch to your server.

Where do my customers’ replies go?

With default sending, to the email address in your company profile. With your own mail server the email comes from your sender address — replies go there.

Can a copy go to my customer’s accounting team?

Yes. Add an address under “Copy to (CC)” on the customer — it receives a copy of every invoice and document email, reminders and cancellations included.

Can I change the email text?

Yes, under “Texts & Emails”: subject and message for every kind of email, separately in English, German and French, with placeholders such as %total%. The text applies to every email of that kind.

Can I see when and to whom an invoice was sent?

Yes. Every invoice and quote keeps its sends in its history: date and time, the recipient and the copy address, whether it went through UNENO or your own mail server, who sent it and as which file — PDF, ZUGFeRD, XRechnung or Factur-X. Reminders, cancellations and withdrawal notices are listed too.

What happens if sending fails?

You see it straight away — with your own mail server, with the reason, for example “Your mail server rejected the login”. The invoice stays issued and can be sent again; nothing is resent automatically, so your customer never gets it twice. A failed send is not entered in the history, and UNENO never switches to its own sending behind your back.

Are recurring invoices sent automatically?

Yes, if you set the series to “Issue & send”: every run issues the invoice and emails it to your customer. Alternatively a series creates drafts or only issues.

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  • Made & hosted in Germany
  • GDPR-compliant
  • E-invoicing built in
  • 14-day free trial