Free Libero, Virgilio, Alice & PEC Email Verifier
Validate Italian consumer webmail (@libero.it, @virgilio.it, @alice.it, @tin.it, @tiscali.it, @fastwebnet.it) and corporate PEC (Posta Elettronica Certificata) addresses in real time.
⚙️ Libero Virgilio Pec Email Verifier Telemetry Specs
Libero, Virgilio & PEC Live SMTP Handshake & MX Diagnostic
Supported domains: @libero.it, @virgilio.it, @alice.it, @tin.it, @tim.it, @tiscali.it & @pec.it
| SMTP Code / Response | KaijuVerifier Verdict | Technical Meaning |
|---|---|---|
| 250 2.1.5 <user> recipient ok | Active Italian Inbox | The Libero, Virgilio, TIM, or PEC mailbox exists and accepts incoming mail. |
| 550 5.1.1 <user> User unknown / Casella inesistente | Invalid / Closed Mailbox | The Italian webmail or PEC account does not exist or was revoked. |
| 552 5.2.2 <user> Over quota / Casella piena | Mailbox Full | The recipient's Libero/Alice storage quota is full and cannot receive messages. |
| 550 5.7.1 PEC policy rejection | PEC Certified-Only Filter | Some Italian PEC boxes only accept messages from other certified PEC senders; flagged by MX inspection. |
How We Verify Libero, Virgilio, Alice, TIM & PEC (Italy) Addresses
Verifying @libero.it, @virgilio.it & @inwind.it (Italiaonline)
Italiaonline operates both Libero Mail and Virgilio Mail, serving over 9 million active Italian accounts. Inactive accounts are routinely suspended and return 550 hard bounces after 9 months of non-use.
Pruning Legacy Telecom Italia (@alice.it & @tin.it) Lists
Legacy @alice.it and @tin.it addresses have very high abandonment rates in Italian CRM databases. KaijuVerifier checks `in.alice.it` in real time so you can remove dead contacts before mailing.
Detecting Italian B2B PEC Domains (@pec.it, @legalmail.it, @pec.aruba.it)
Every Italian company and professional is legally required to hold a PEC address (`@pec.it`, `@legalmail.it`, `@postecert.it`). Our MX inspector identifies PEC gateways (`mx.pec.aruba.it`, `mbox.cert.legalmail.it`) so you know whether a B2B contact is a standard inbox or a certified PEC box.
Verify Other Email Providers & Regional ISPs
Frequently Asked Questions — Libero, Virgilio & PEC Verification
Can KaijuVerifier distinguish between standard Italian business emails and PEC (Posta Elettronica Certificata)?
Yes. By inspecting the domain and MX records (`mx.pec.aruba.it`, `mbox.cert.legalmail.it`, `relay.pec.it`), KaijuVerifier identifies Italian PEC addresses, which often reject standard uncertified marketing emails.
Why do @alice.it and @libero.it addresses cause high bounce rates?
Both Telecom Italia (@alice.it, @tin.it) and Italiaonline (@libero.it, @virgilio.it) deactivate free consumer mailboxes after prolonged inactivity. Verifying your Italian list removes deactivated accounts before they hurt your sender score.