Yes. You can verify any @Sphere.ne.jp address in real time with a direct SMTP handshake that provides 99.7% accuracy. Sphere.ne.jp is operated by Sphere, runs 3 mail servers, enforces 0 of 3 authentication standards, and is currently not 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.
sphere.ne.jp publishes 3 MX records. The primary mail exchanger is vma.sphere.ne.jp, hosted by ne.jp, and it is currently not responding to SMTP. Mail is routed through these servers in priority order, lowest number first.
| Priority | Hostname | IP | Status |
|---|---|---|---|
| 10 | vma.sphere.ne.jp | 210.150.255.74 | No Response |
| 20 | mxa.sphere.ad.jp | 210.150.250.131 | No Response |
| 30 | mail.sphere.ad.jp | 210.150.250.131 | No Response |
220 sphere.ne.jp ESMTP Service ReadyYes. sphere.ne.jp is a valid email domain, operated by Sphere. 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 Sphere.ne.jp'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 sphere.ne.jp mailboxes before you mail them.
Mistyped sphere.ne.jp 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 sphere.ne.jp addresses raises every rate that matters: opens, clicks, and replies.
Sphere.ne.jp is Sphere and first seen Dec 19, 1996.
sphere.ne.jp is the email domain for Sphere, a Japanese internet service provider. Sphere provided broadband internet and email services to Japanese customers. Legacy sphere.ne.jp email accounts continue to function within Japanese telecommunications infrastructure.
sphere.ne.jp supports SPF records for sender authentication. DKIM and DMARC configurations follow standard Japanese ISP practices.
The sphere.ne.jp mail servers validate recipients during SMTP sessions and apply anti-spam filtering typical of Japanese ISP systems.
For delivery to sphere.ne.jp, authenticate with SPF and DKIM, warm up IPs gradually, and comply with Japanese anti-spam regulations.
Upload a CSV or TXT list of Sphere.ne.jp 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 Sphere.ne.jp 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, sphere.ne.jp is a valid email domain from Sphere, a Japanese ISP. Legacy email accounts remain active within Japanese telecom infrastructure.
No, sphere.ne.jp is not a disposable or temporary email service. It is a permanent ISP email domain that served Japanese internet subscribers.
sphere.ne.jp uses mail servers within Japanese telecommunications infrastructure. The MX records direct inbound email to gateways for filtering and delivery.
You can send marketing emails to sphere.ne.jp addresses with valid opt-in consent. Authenticate with SPF and DKIM, comply with Japanese anti-spam law, and honor opt-out requests.
You can verify a sphere.ne.jp email address using an email verification service that checks MX records and performs SMTP-level validation to confirm the mailbox is active.
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 sphere.ne.jp's mail servers, the same engine that has verified billions of addresses since 2012.
Other isp email provider domains we have audited.