Yes. You can verify any @Iol.pt address in real time with a direct SMTP handshake that provides 99.7% accuracy. Iol.pt is operated by Portugal Telecom, runs 1 mail server, enforces 3 of 3 authentication standards, and is currently responding to SMTP.
Every check returns one of three clear outcomes so you know exactly what to do with the address.
The mailbox exists and accepts mail. Send with confidence, the address is deliverable.
The mailbox does not exist, is disposable, or will hard-bounce. Remove it to protect your sender reputation.
The server is catch-all or greylisting, so existence cannot be confirmed. Send selectively and watch engagement.
iol.pt publishes 1 MX record. The primary mail exchanger is smtp-box-01.iol.pt, hosted by iol.pt, and it is currently reachable and answering SMTP. Mail is routed through these servers in priority order, lowest number first.
| Priority | Hostname | IP | Status |
|---|---|---|---|
| 5 | smtp-box-01.iol.pt | 193.126.240.185 | Reachable |
220 smtp-box-01.iol.pt ESMTP PostfixYes. iol.pt is a valid email provider, operated by Portugal Telecom. Addresses are persistent and real mail reaches a genuine recipient. Individual mailboxes still go stale, so verify each one before you send.
A live SMTP handshake connects to Iol.pt's mail server and asks whether the mailbox exists using the RCPT TO command, without ever transmitting a message. The recipient never sees the check.
Each address runs through 30+ checks including SMTP existence, catch-all detection, role-account filtering, and disposable matching. The same engine has verified billions of addresses since 2012.
Every unverified address is a gamble. Here is what happens when you skip verification and mail a list that has not been cleaned.
Free inboxes get abandoned constantly. Verification drops the dead iol.pt mailboxes before you mail them.
Mistyped iol.pt addresses fail a real SMTP check, so they never turn into a hard bounce.
A clean list keeps your bounce rate low, and a low bounce rate is what protects inbox placement on a big send.
Mailing only live iol.pt addresses raises every rate that matters: opens, clicks, and replies.
Iol.pt is Portugal Telecom.
iol.pt is a Portuguese email and web portal historically associated with Portugal Telecom (now Altice Portugal). Based in Lisbon, the platform provides free email alongside news and entertainment for Portuguese internet users.
iol.pt supports SPF authentication for outbound email. The service complies with EU GDPR and Portuguese data protection regulations.
The iol.pt mail servers perform recipient verification and reject invalid addresses. The domain does not operate as catch-all. Rate limiting applies from unfamiliar senders.
When emailing iol.pt users, authenticate with SPF and DKIM. Comply with Portuguese and EU anti-spam regulations. Include proper unsubscribe options.
Upload a CSV or TXT list of Iol.pt addresses to the bulk email verifier. Every address runs through a live SMTP handshake plus catch-all, role-account and disposable detection, and you download a clean list when processing completes. For real-time checks at signup, use the real-time email verification API.
CSV or TXT with one email per line. No formatting needed.
Each Iol.pt address is checked with a live server handshake.
Get a verified list with status codes, risk flags, and catch-all detection.
Pay as you go. No subscriptions, and credits never expire.
Everything about verifying email at this domain.
Yes, iol.pt is a valid free email domain operated by Portugal Telecom. It provides permanent email accounts to users.
No, iol.pt is not a disposable or temporary email provider. It offers permanent email accounts with standard email features.
iol.pt uses mail servers operated by Portugal Telecom. Check the MX records section above for specific server details.
Yes, with proper opt-in consent. Follow email best practices and ensure SPF, DKIM, and DMARC authentication is configured for your sending domain.
Use BulkEmailChecker to verify iol.pt addresses via SMTP checks. Verification behavior varies by provider. Our tool handles provider-specific rate limiting automatically.
Upload a CSV or TXT list to the bulk email verifier. Every address runs through 30+ checks including SMTP existence, catch-all detection, role-account, and disposable matching. Processing time depends on list size.
99.7% accurate using a direct SMTP handshake with iol.pt's mail servers, the same engine that has verified billions of addresses since 2012.
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