Yes. You can verify any @Runbox.com address in real time with a direct SMTP handshake that provides 99.7% accuracy. Runbox.com is operated by Runbox Solutions AS, 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.
runbox.com publishes 1 MX record. The primary mail exchanger is mx.runbox.com, hosted by runbox.com, and it is currently reachable and answering SMTP. Mail is routed through these servers in priority order, lowest number first.
| Priority | Hostname | IP | Status |
|---|---|---|---|
| 10 | mx.runbox.com | 185.226.149.25 | Reachable |
220 aibo.runbox.com ESMTP Exim 4.95 Ubuntu Fri, 05 Jun 2026 18:10:11 +0200Yes. runbox.com is a valid email provider, operated by Runbox Solutions AS. 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 Runbox.com'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 runbox.com mailboxes before you mail them.
Mistyped runbox.com 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 runbox.com addresses raises every rate that matters: opens, clicks, and replies.
Runbox.com is Runbox Solutions AS, registered through ENOM, INC. and first seen Aug 10, 1999.
runbox.com is a Norwegian privacy-focused email service operated by Runbox Solutions AS, based in Oslo. Founded in 2000, Runbox provides paid email with strong privacy protections, powered by hydroelectric energy, and hosted in Norwegian data centers under strict privacy laws.
runbox.com implements SPF, DKIM, and DMARC authentication. The service operates under Norwegian privacy laws and EU GDPR. Runbox emphasizes sustainability and privacy as core values.
The runbox.com mail servers validate recipients and reject invalid addresses. The domain does not operate as catch-all. Security-focused filtering protects the privacy-conscious user base.
For delivery to runbox.com, authenticate with SPF, DKIM, and DMARC. Runbox users are privacy-focused. Well-authenticated messages deliver reliably.
Upload a CSV or TXT list of Runbox.com 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 Runbox.com 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, runbox.com is a valid email domain operated by Runbox Solutions AS, a Norwegian company providing privacy-focused email since 2000.
No, runbox.com is a permanent paid email service based in Norway with strong privacy protections.
Runbox operates its own mail servers in Norway, powered by renewable energy and designed for privacy.
Yes, with consent. Runbox users value privacy. Ensure GDPR compliance and transparent practices.
Runbox addresses can be verified via SMTP with standard accept/reject responses.
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 runbox.com's mail servers, the same engine that has verified billions of addresses since 2012.
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