Domain Intelligence
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Redfin Email Verification

Safe to Send

Redfin.com is operated by Redfin Corporation. The domain runs 5 mail exchanges and SMTP is responsive, with all three authentication standards in force.

Safe to Send
Verify Mailbox

Verify @redfin.com emails

Live SMTP handshake against redfin.com mail servers. No email is sent. 10 free per day, no signup.

@redfin.com
No email sent No signup Real-time SMTP

Trusted by 400,000+ senders

4.9/5
From 8,500+ verified reviews
Switched after a billing dispute with NeverBounce. Same SMTP results on a 5k test sample. The MX, SPF, DKIM lookup tools are a hidden value-add for debugging client deliverability complaints. James Wexler · Growth Engineer
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
5
Mail exchangers

Mail Exchange (MX) Records for redfin.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.

5 RECORDS
#1
aspmx.l.google.com 142.251.111.27
Reachable
#5
alt1.aspmx.l.google.com 108.177.123.27
Reachable
#5
alt2.aspmx.l.google.com 172.253.116.26
Reachable
#10
alt3.aspmx.l.google.com 192.178.223.26
Reachable
#10
alt4.aspmx.l.google.com 173.194.76.26
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 mx.google.com ESMTP af79cd13be357-910bb22494fsi1690503085a.70 - gsmtp
Primary mail server accepted SMTP connection and returned a banner during the live audit.

redfin.com Email Authentication SPF · DKIM · DMARC

3/3 PASS
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:_s99923342.fdmarc.net -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. Reject
TXTv=DMARC1;p=reject;pct=100;rua=mailto:a+99923342@fdmarc.net;ruf=mailto:f+99923342@fdmarc.net;ri=3600;fo=1;
Strict policy. Receivers are instructed to reject any mail that fails SPF or DKIM. The strongest available setting.

redfin.com Domain Registration WHOIS · Nameservers · Registrar

25 YEARS OLD
RegistrarGoDaddy Corporate Domains, LLC
IANA ID3786
RegisteredMay 2, 2000
Last UpdatedApril 7, 2026
ExpiresMay 2, 2027
Age25 years
TLD.com
Authoritative Nameservers (4)
  • NS-1591.AWSDNS-06.CO.UK
  • NS-716.AWSDNS-25.NET
  • NS-1284.AWSDNS-32.ORG
  • NS-146.AWSDNS-18.COM
Registrant
Hidden by registrar privacy service
Technical Contact
Hidden by registrar privacy service
About this Domain

About redfin.com

Redfin Corporation (redfin.com) is a technology-powered real estate brokerage headquartered in Seattle, Washington. Redfin operates a residential real estate search platform and employs its own real estate agents to represent buyers and sellers. The company is known for offering lower listing fees than traditional brokerages and providing a data-driven approach to home buying and selling.

Redfin implements email authentication on the redfin.com domain with SPF, DKIM, and DMARC enforcement. Real estate companies face phishing threats from campaigns impersonating listing alerts, offer notifications, and closing documents. Authentication protects home buyers, sellers, and agents from fraudulent communications.

Email verification against redfin.com provides definitive accept/reject responses for individual mailboxes. The domain does not operate as catch-all. Redfin's mail infrastructure implements rate limiting on inbound SMTP connections.

For real estate partners communicating with Redfin employees, proper sender authentication improves deliverability. Redfin's corporate email filters enforce SPF, DKIM, and DMARC validation. Authentication compliance ensures reliable delivery to redfin.com addresses.

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Common Questions About redfin.com

Is redfin.com a disposable or temporary email provider?
No. redfin.com is not a disposable email provider. It is classified as Corporate Email operated by Redfin Corporation and addresses on redfin.com are persistent rather than throwaway. Mail sent to a valid redfin.com mailbox reaches a real recipient.
How do I verify if a redfin.com email address is valid?
The fastest way to verify a redfin.com email address is to use our email checker. Enter any @redfin.com mailbox at the top of this page and our system performs a real-time SMTP handshake against redfin.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 redfin.com email exists without sending a message?
Yes. Our real-time email verification API connects directly to redfin.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 redfin.com mailbox is valid, full, or non-existent. The recipient never receives anything and never sees the check.
What are the MX records for redfin.com?
redfin.com currently publishes 5 mail exchange (MX) records. The primary MX is aspmx.l.google.com, which is the first server contacted when other mail systems try to deliver email to a redfin.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 redfin.com.
Does redfin.com use SPF, DKIM, and DMARC email authentication?
redfin.com enforces all three email authentication standards: SPF, DKIM, and DMARC (policy: reject). This is the gold-standard configuration. It means receivers can verify that mail claiming to come from @redfin.com is genuine, and redfin.com's DMARC policy of 'reject' instructs receivers how to handle messages that fail those checks.
Why do emails to redfin.com bounce or get blocked?
Bounces from redfin.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 redfin.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 redfin.com's receivers trust you.
How can I verify a large list of redfin.com email addresses?
Our bulk email verifier accepts CSV or TXT uploads with thousands or millions of redfin.com addresses (or any mix of domains). Every address goes through 30+ checks including SMTP existence, redfin.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 redfin.com email addresses?
Yes, with normal hygiene. redfin.com is a legitimate email service and signups from @redfin.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 redfin.com by default.
What email format does redfin.com use for usernames?
Most redfin.com mailboxes follow common patterns like first.last@redfin.com, firstinitiallast@redfin.com, or first@redfin.com, but the actual local-part rules depend on Redfin Corporation. The only reliable way to confirm whether a specific @redfin.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 redfin.com risk score calculated?
The 0-to-100 risk score for redfin.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 redfin.com score is recomputed on every audit so it always reflects the live state of the domain.
Is redfin.com a valid corporate email domain?
Yes, redfin.com is the official corporate email domain for Redfin Corporation. It is used for internal business communications and is not available for public registration.
Is redfin.com a disposable or temporary email provider?
No, redfin.com is a corporate email domain belonging to Redfin Corporation, used exclusively by employees and authorized personnel.
What mail server does redfin.com use?
redfin.com uses enterprise-grade mail infrastructure. Check the MX records section above for specific mail server details.
Can I send marketing emails to redfin.com addresses?
B2B marketing to redfin.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 redfin.com?
Corporate domains like redfin.com may use catch-all configurations. Use BulkEmailChecker's advanced verification to detect catch-all behavior.