Domain Intelligence
Last Updated:
Rice Email Verification
Safe to Send
Rice.edu is operated by Rice University. 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 @rice.edu emails
Live SMTP handshake against rice.edu 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
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
2
Mail exchangers
Mail Exchange (MX) Records for rice.edu 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.
#20
smtp2.mail.rice.edu 128.42.201.101
Reachable
#20
smtp1.mail.rice.edu 128.42.199.101
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 mh2.mail.rice.edu ESMTP Postfix
Primary mail server accepted SMTP connection and returned a banner during the live audit.
rice.edu 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 a:mh.rice.edu include:spfext.rice.edu include:spfext2.rice.edu include:_spf.google.com include:spf.protection.outlook.com include:spf-0010f302.pphosted.com ~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.
None
TXTv=DMARC1; p=none; rua=mailto:dmarc@rice.edu,mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com; adkim=r; aspf=r; sp=none
Monitoring only. Receivers take no action when SPF or DKIM fails.
rice.edu Domain Registration WHOIS · Nameservers · Registrar
RegisteredApril 24, 1985
Last UpdatedJune 27, 2025
ExpiresJuly 31, 2026
Age41 years
TLD.edu
Authoritative Nameservers (4)
- NS1.RICE.EDU
- NS2.RICE.EDU
- NS4.PURDUE.EDU
- NS3.PURDUE.EDU
Registrant
Rice University
Information Technology
Houston, TX, UNITED STATES
Technical Contact
Rice University
Networking
hostmaster@rice.edu·Houston, TX, UNITED STATES·17133484989
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More Email Verification Tools
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Common Questions About rice.edu
Is rice.edu a disposable or temporary email provider?
No. rice.edu is not a disposable email provider. It is classified as Education Email operated by Rice University and addresses on rice.edu are persistent rather than throwaway. Mail sent to a valid rice.edu mailbox reaches a real recipient.
How do I verify if a rice.edu email address is valid?
The fastest way to verify a rice.edu email address is to use our email checker. Enter any @rice.edu mailbox at the top of this page and our system performs a real-time SMTP handshake against rice.edu'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 rice.edu email exists without sending a message?
Yes. Our real-time email verification API connects directly to rice.edu'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 rice.edu mailbox is valid, full, or non-existent. The recipient never receives anything and never sees the check.
What are the MX records for rice.edu?
rice.edu currently publishes 2 mail exchange (MX) records. The primary MX is smtp2.mail.rice.edu, which is the first server contacted when other mail systems try to deliver email to a rice.edu 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 rice.edu.
Does rice.edu use SPF, DKIM, and DMARC email authentication?
rice.edu enforces all three email authentication standards: SPF, DKIM, and DMARC (policy: none). This is the gold-standard configuration. It means receivers can verify that mail claiming to come from @rice.edu is genuine, and rice.edu's DMARC policy of 'none' instructs receivers how to handle messages that fail those checks.
Why do emails to rice.edu bounce or get blocked?
Bounces from rice.edu 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 rice.edu'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 rice.edu's receivers trust you.
How can I verify a large list of rice.edu email addresses?
Our bulk email verifier accepts CSV or TXT uploads with thousands or millions of rice.edu addresses (or any mix of domains). Every address goes through 30+ checks including SMTP existence, rice.edu 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 rice.edu email addresses?
Yes, with normal hygiene. rice.edu is a legitimate email service and signups from @rice.edu 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 rice.edu by default.
What email format does rice.edu use for usernames?
Most rice.edu mailboxes follow common patterns like first.last@rice.edu, firstinitiallast@rice.edu, or first@rice.edu, but the actual local-part rules depend on Rice University. The only reliable way to confirm whether a specific @rice.edu 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 rice.edu risk score calculated?
The 0-to-100 risk score for rice.edu 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 rice.edu score is recomputed on every audit so it always reflects the live state of the domain.
Is rice.edu a valid email domain?
Yes, rice.edu is the official email domain for Rice University. Educational institution domains are used by students, faculty, and staff.
Is rice.edu a disposable or temporary email provider?
No, rice.edu is an educational institution domain belonging to Rice University. However, student email addresses may be deactivated after graduation.
What mail server does rice.edu use?
rice.edu uses mail infrastructure managed by the institution. Many universities use Microsoft 365 or Google Workspace. Check the MX records above.
Can I send marketing emails to rice.edu addresses?
Marketing requires opt-in consent. Student addresses may become inactive after graduation. Education domains often have strict spam filtering.
How do I verify an email address at rice.edu?
Education domains may use catch-all or restricted SMTP. Student addresses can expire. Use BulkEmailChecker for reliable verification.