Domain Intelligence
Last Updated:
Bnsf.com
Safe to Send
Bnsf.com is operated by BNSF Railway. The domain runs 2 mail exchanges and SMTP is responsive, with all three authentication standards in force.
Safe to Send
RISK
15
/100
Low
Verify Mailbox
Verify @bnsf.com emails
Live SMTP handshake against bnsf.com mail servers. No email is sent. 10 free per day, no signup.
Trusted by 400,000+ senders
4.9/5
From 8,500+ verified reviews
I run cold for an agency. We've used Hunter, NeverBounce, and ZeroBounce. This matches them on accuracy and is meaningfully cheaper at our volume. Switched everything over in March. Priya Nair
SOC 2 Type II
GDPR
CCPA
99.7% Accuracy
Disposable
No
Persistent addresses, not throwaway
SMTP Live
Yes
Mail server responds to SMTP handshake
MX Records
2
Mail exchangers
Mail Exchange (MX) Records for bnsf.com Mail Exchange records. They tell other mail servers which hosts are responsible for receiving email at this domain, in priority order. Lower priority numbers are tried first.
#10
usb-smtp-inbound-1.mimecast.com 170.10.150.242
Reachable
#10
usb-smtp-inbound-2.mimecast.com 170.10.150.242
Reachable
SMTP Handshake
Simple Mail Transfer Protocol. We open a live SMTP connection to the primary MX and read the greeting banner. A response confirms the mail server is alive and accepting connections.
Responsive
BANNER220 usb-smtp-inbound-1.mimecast.com ESMTP; Tue, 12 May 2026 11:10:07 -0700
Primary mail server accepted SMTP connection and returned a banner during the live audit.
bnsf.com Email Authentication SPF · DKIM · DMARC
SPF
Sender Policy Framework. A DNS record listing which servers are allowed to send mail for this domain. Receivers reject or flag mail from unauthorized servers.
Pass
TXTv=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all
Authorized senders are defined and pass SPF policy.
DKIM
DomainKeys Identified Mail. The sending server cryptographically signs outbound mail with a private key, and receivers verify the signature using a public key in DNS.
Pass
SELECTORDetected via standard selectors
A DKIM signature was detected. Outbound mail from this domain can be cryptographically verified.
DMARC
Domain-based Message Authentication, Reporting & Conformance. Tells receivers what to do when SPF or DKIM checks fail: none, quarantine, or reject.
Quarantine
TXTv=DMARC1; p=quarantine; rua=mailto:dmarc_agg@vali.email,mailto:5674fed4d7b4192@rep.dmarcanalyzer.com; ruf=mailto:5674fed4d7b4192@for.dmarcanalyzer.com,mailto:techsvcsdldmarcalerts@bnsf.com
Receivers are instructed to quarantine (route to spam) any mail that fails SPF or DKIM.
bnsf.com Domain Registration WHOIS · Nameservers · Registrar
RegistrarCSC Corporate Domains, Inc.
IANA ID299
RegisteredDecember 5, 1995
Last UpdatedApril 21, 2026
ExpiresDecember 5, 2026
Age30 years
TLD.com
Authoritative Nameservers (6)
- NS3.ULTRADNS2.ORG
- NS3.ULTRADNS2.COM
- PDNS82.ULTRADNS.NET
- PDNS82.ULTRADNS.COM
- pdns82.ultradns.org
- pdns82.ultradns.biz
Registrant
BNSF Railway Company
TX, UNITED STATES
About this Domain
About bnsf.com
BNSF Railway (bnsf.com) is one of the largest freight railroad networks in North America, headquartered in Fort Worth, Texas. Owned by Berkshire Hathaway, BNSF operates over 32,500 miles of track across 28 states and three Canadian provinces, transporting agricultural products, consumer goods, coal, and industrial freight across the western two-thirds of the United States.
BNSF implements enterprise email authentication on the bnsf.com domain with SPF, DKIM, and DMARC enforcement. As critical transportation infrastructure, BNSF maintains robust email security to protect shipping logistics, hazardous materials documentation, and railway operations communications.
SMTP verification of bnsf.com addresses returns definitive responses for valid and invalid mailboxes. The domain does not function as catch-all. BNSF's enterprise mail infrastructure implements rate limiting on inbound SMTP connections.
For partners communicating with BNSF employees, proper sender authentication improves deliverability. BNSF's corporate email filters enforce SPF, DKIM, and DMARC validation. Authentication compliance ensures reliable inbox delivery to bnsf.com addresses.
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Common Questions About bnsf.com
Is bnsf.com a disposable or temporary email provider?
No. bnsf.com is not a disposable email provider. It is classified as Corporate Email operated by BNSF Railway and addresses on bnsf.com are persistent rather than throwaway. Mail sent to a valid bnsf.com mailbox reaches a real recipient.
How do I verify if a bnsf.com email address is valid?
The fastest way to verify a bnsf.com email address is to use our free email checker. Enter any @bnsf.com mailbox at the top of this page and our system performs a real-time SMTP handshake against bnsf.com's mail servers, confirming whether the mailbox exists, is reachable, and is safe to send to. No email is ever delivered during the check.
Can I check if a bnsf.com email exists without sending a message?
Yes. Our real-time email verification API connects directly to bnsf.com's mail server, opens an SMTP session, and queries the mailbox using the RCPT TO command without ever transmitting an actual email. The server's response confirms whether the bnsf.com mailbox is valid, full, or non-existent. The recipient never receives anything and never sees the check.
What are the MX records for bnsf.com?
bnsf.com currently publishes 2 mail exchange (MX) records. The primary MX is usb-smtp-inbound-1.mimecast.com, which is the first server contacted when other mail systems try to deliver email to a bnsf.com address. The full list with priorities and IP addresses is in the MX Records panel above. MX records tell sending servers where to route email for bnsf.com.
Does bnsf.com use SPF, DKIM, and DMARC email authentication?
bnsf.com enforces all three email authentication standards: SPF, DKIM, and DMARC (policy: quarantine). This is the gold-standard configuration. It means receivers can verify that mail claiming to come from @bnsf.com is genuine, and bnsf.com's DMARC policy of 'quarantine' instructs receivers how to handle messages that fail those checks.
Why do emails to bnsf.com bounce or get blocked?
Bounces from bnsf.com usually fall into three buckets: the mailbox doesn't exist (5xx user unknown), the inbox is full, or your sending domain isn't authenticated to bnsf.com's satisfaction. The fastest fix is to run each address through a free email verifier before you send, and to make sure your own SPF, DKIM, and DMARC are configured correctly so bnsf.com's receivers trust you.
How can I verify a large list of bnsf.com email addresses?
Our bulk email verifier accepts CSV or TXT uploads with thousands or millions of bnsf.com addresses (or any mix of domains). Every address goes through 30+ checks including SMTP existence, bnsf.com catch-all detection, role-account detection, and disposable-domain matching. Results typically come back within minutes and previously-failed addresses on your blacklist are reprocessed for free. For continuous high-volume needs, see our unlimited email verification API.
Is it safe to accept signups from bnsf.com email addresses?
Yes, with normal hygiene. bnsf.com is a legitimate email service and signups from @bnsf.com behave like any other real user. Pipe each address through a real-time email verifier API at the moment of signup to catch typos and dead mailboxes, but there is no need to block bnsf.com by default.
What email format does bnsf.com use for usernames?
Most bnsf.com mailboxes follow common patterns like first.last@bnsf.com, firstinitiallast@bnsf.com, or first@bnsf.com, but the actual local-part rules depend on BNSF Railway. The only reliable way to confirm whether a specific @bnsf.com address exists is to run it through a free email verification tool. Guessing patterns will produce a high bounce rate and damage your sender reputation.
How is the bnsf.com risk score calculated?
The 0-to-100 risk score for bnsf.com combines disposable-domain classification, mail-server reachability, MX record presence and depth, SPF / DKIM / DMARC enforcement, DMARC policy strength, SMTP banner response, and domain age. Lower scores mean safer to send to. Disposable domains are pinned at the high end of the scale. The bnsf.com score is recomputed on every audit so it always reflects the live state of the domain.
Is bnsf.com a valid corporate email domain?
Yes, bnsf.com is the official corporate email domain for BNSF Railway. It is used for internal business communications and is not available for public registration.
Is bnsf.com a disposable or temporary email provider?
No, bnsf.com is a corporate email domain belonging to BNSF Railway, used exclusively by employees and authorized personnel.
What mail server does bnsf.com use?
bnsf.com uses enterprise-grade mail infrastructure. Check the MX records section above for specific mail server details.
Can I send marketing emails to bnsf.com addresses?
B2B marketing to bnsf.com requires proper consent. Corporate domains may use catch-all configurations, so verify individual addresses before sending.
How do I verify an email address at bnsf.com?
Corporate domains like bnsf.com may use catch-all configurations. Use BulkEmailChecker's advanced verification to detect catch-all behavior.