IT-R-005
Error Guide

🇮🇹 IT-R-005: Invalid PEC email format in Italy

ErrorMandatoryNeeds Input

Italian PEC email must be valid certified email address.

Quick Facts
Severity
Error (rejection)
Ruleset
ubl-2.1
Mandate
B2B Mandatory
Fix Type
Needs input

Why This Matters in Italy

Italy requires e-invoicing using FatturaPA (XML). Invoices with this error will be rejected. They cannot be processed for Italy compliance.

Invoice Navigator covers 98 FatturaPA 1.2.2 (SDI v1.9.1 effective May 15, 2026) rules for Italy.

How to Fix IT-R-005

  1. 1
    Check PEC domain
    Must be certified email provider
  2. 2
    Verify format
    Valid email format required

Italy E-Invoicing Requirements

Phase
Status
Scope
B2G
Live (Jun 2014)
All public administration suppliers
B2B
Live (Jan 2019)
All domestic transactions
B2C
Live (Jan 2019)
All domestic transactions
Flat-rate taxpayers
Live (Jul 2022)
Extended to forfettari regime

Common Causes

  • •Invalid PEC domain
  • •Regular email instead of PEC

Fix IT-R-005 automatically

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