What do I have to send and what is not processed?

A UBL 2.1 Invoice or CreditNote attachment (Peppol BIS Billing 3.0) with the .xml extension, optionally in an SBDH envelope, or IFS Finvoice 2.0 (.xml with the IFS SOAP envelope or a bare IFSFinvoice), which we convert to UBL; at most 10 attachments per message, 15 MB per attachment. PDFs, images and the message text are not processed. Import an invoice in another format in the portal on the Send e-invoice page, Bulk send tab.

How is it protected so that nobody else sends an invoice on behalf of my company?

Four layers: nobody can guess the address and you can replace it at any time; we only accept a message from an address on the list of allowed senders; by default the sender's domain must pass SPF or DKIM verification at the delivering server (the check can be switched off, we do not recommend it); and the seller in the XML (the supplier's EndpointID) must be your company. Every acceptance is in the company's log and in the security record.

Who sees the address and can I use it from several mailboxes?

The address and the list of allowed senders are visible only to the owner or administrator of the company signed in to the portal. You can allow up to 20 mailboxes, for example the invoicing system and the accountant; automated mailboxes such as noreply, postmaster or mailer-daemon cannot be added, use the mailbox of a person or of the invoicing system.

What happens after I send the e-mail?

The sender receives one message with the result for every attachment (handed over, undeliverable, rejected and why). The document behaves exactly as when uploaded in the portal: in the list of sent documents it has a delivery status with the MLS receipt and the report to the Financial Administration, in the API and webhooks it carries origin = email and the sender's address. The same message, by Message-ID, is processed only once.

When can the address be switched on?

Only for an active company with a Peppol identifier, that is after selecting Verteco as the provider on the Financial Administration portal. The setting is changed by the owner or administrator of the company, only when signed in to the portal.

How much does it cost?

The connection is free. The service costs from €2/month excl. VAT per company ID (IČO) that sends or has the Data archive switched on; receiving with the archive off is free (up to 1,000 invoices a month). During the voluntary period before the mandate of 1 January 2027 everything is free of charge.

Integrations / For developers / Odosielanie e-mailom

Sending by e-mail

Available

In the portal the company switches on its own secret e-mail address of the form 24 random characters @peppol.send.verteco.app. An e-mail with a UBL XML attachment sent to this address from an allowed mailbox is sent through the Peppol network exactly as if you had uploaded the file on the Send by file tab. The sender receives one reply with the result for every attachment and the document is in the portal and in the API with its delivery status, MLS receipt and the report to the Financial Administration.

Get the plugin in the portal Create a free account

How it works

1In the portal open Connections and integrations and the Sending by e-mail card (owner or administrator of the company). Choose the company and click Enable receiving by e-mail: we generate an unguessable address just for this company.
2Under Allowed senders add the addresses invoices may come from (for example [email protected] or the mailbox of your ERP), up to 20. Messages from other addresses are discarded without a reply.
3Send an e-mail with a UBL 2.1 Invoice or CreditNote attachment (Peppol BIS Billing 3.0, .xml extension), or with IFS Finvoice 2.0 (an .xml file with the IFS SOAP envelope or a bare IFSFinvoice), which we convert to UBL. The seller in the XML must be your company and the customer must have a Peppol identifier with a scheme (for example 0245 and the tax ID); for Finvoice we derive it from the customer's Slovak VAT ID.
4Within a minute you get a reply saying whether the invoice was handed to the network or why it was rejected. You follow the delivery status, the receipt and the report to the Financial Administration in the portal; the latest messages are shown right on the settings page.

What the integration solves

✓An unguessable address just for your company, replaceable at any time with the Generate a new address button (the old one stops working immediately)
✓A list of allowed senders (up to 20) and, by default, required SPF or DKIM verification of the sender's domain
✓Up to 10 UBL XML attachments in one message, 15 MB per attachment, 200 messages per address per day
✓Conversion of IFS Finvoice 2.0 to UBL: a corrective invoice as a credit note referencing the original invoice, lines with 0 % VAT as exempt with the reason from VatFreeText, the embedded PDF image of the invoice as a document attachment (invoices in EUR with a Slovak VAT ID of the customer)
✓Results to another address: when a system mailbox of the ERP sends the invoices, we send the reply with the result to an address you choose
✓Protection against a foreign invoice: the seller in the XML must be your company, a forwarded supplier's invoice is never sent
✓One e-mail reply with the result for every attachment; the same message (Message-ID) is processed only once
✓The document in the portal and in the API as when uploading a file: delivery status, MLS receipt, report to the Financial Administration, origin = email

Frequently asked questions: e-invoices for Odosielanie e-mailom

What do I have to send and what is not processed?: A UBL 2.1 Invoice or CreditNote attachment (Peppol BIS Billing 3.0) with the .xml extension, optionally in an SBDH envelope, or IFS Finvoice 2.0 (.xml with the IFS SOAP envelope or a bare IFSFinvoice), which we convert to UBL; at most 10 attachments per message, 15 MB per attachment. PDFs, images and the message text are not processed. Import an invoice in another format in the portal on the Send e-invoice page, Bulk send tab.
How is it protected so that nobody else sends an invoice on behalf of my company?: Four layers: nobody can guess the address and you can replace it at any time; we only accept a message from an address on the list of allowed senders; by default the sender's domain must pass SPF or DKIM verification at the delivering server (the check can be switched off, we do not recommend it); and the seller in the XML (the supplier's EndpointID) must be your company. Every acceptance is in the company's log and in the security record.
Who sees the address and can I use it from several mailboxes?: The address and the list of allowed senders are visible only to the owner or administrator of the company signed in to the portal. You can allow up to 20 mailboxes, for example the invoicing system and the accountant; automated mailboxes such as noreply, postmaster or mailer-daemon cannot be added, use the mailbox of a person or of the invoicing system.
What happens after I send the e-mail?: The sender receives one message with the result for every attachment (handed over, undeliverable, rejected and why). The document behaves exactly as when uploaded in the portal: in the list of sent documents it has a delivery status with the MLS receipt and the report to the Financial Administration, in the API and webhooks it carries origin = email and the sender's address. The same message, by Message-ID, is processed only once.
When can the address be switched on?: Only for an active company with a Peppol identifier, that is after selecting Verteco as the provider on the Financial Administration portal. The setting is changed by the owner or administrator of the company, only when signed in to the portal.
How much does it cost?: The connection is free. The service costs from €2/month excl. VAT per company ID (IČO) that sends or has the Data archive switched on; receiving with the archive off is free (up to 1,000 invoices a month). During the voluntary period before the mandate of 1 January 2027 everything is free of charge.

Start today: selecting us on the Financial Administration portal is enough

Receiving is free · no lock-in, no hidden feesMeet your 2027 legal obligation in 2 minutes

Choose Verteco on the Financial Administration portal →On the portal, click “Pokračovať” (Continue), sign in (slovensko.sk / eID or your FS portal credentials) and confirm the selection. We handle the rest automaticallyCertified provider of the Financial Administration (EFSK000031) · no commitment · you can change providers at any time

How does the selection work? (3 steps, ~2 minutes)

1Click the button above. The official Financial Administration page “Certified provider selection” opens with Verteco pre-selected. Click “Pokračovať” (Continue).
2Sign in to the Financial Administration portal, via slovensko.sk (eID / ID card with a chip) or with your PFS credentials, and confirm the provider selection.
3Done. A sign-in e-mail arrives. We create your account, company and Peppol network registration automatically. If another provider already holds your receiving record, we do not take it over: you get the migration-code procedure, or you choose in the portal that receiving stays with them and you only send through us.
No eID? You can also sign in to the Financial Administration portal with your PFS identifier and password. Or register here with an e-mail and password, add your company manually and finish the selection later.
Your company is not offered in the “taxpayer selection” step? Only entities you are authorised for on the FS portal appear. Add the authorisation in your Personal Internet Zone (Autorizácie → Pridať autorizovaného používateľa), then finish the selection.
Detailed guide to the FS portal selection (in Slovak) →