Domain Intelligence
Last Updated:
Unam Email Verification
Safe to Send
Unam.mx is operated by National Autonomous University of Mexico. The domain runs 1 mail exchange and SMTP is responsive, with all three authentication standards in force.
Safe to Send
RISK
15
/100
Low
Verify Mailbox
Verify @unam.mx emails
Live SMTP handshake against unam.mx 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
Catch-all detection alone has paid for the subscription. We were hemorrhaging credits at our previous verifier on catch-all domains that accepted the call but never bounced. Saved roughly $400 per month overnight. Brett Anderson · RevOps Manager
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
1
Mail exchangers
Mail Exchange (MX) Records for unam.mx 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.
#0
unam-mx.mail.protection.outlook.com 52.101.194.4
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 BL02EPF00029927.mail.protection.outlook.com Microsoft ESMTP MAIL Service ready at Mon, 18 May 2026 07:12:26 +0000 [08DEB36CBCD61B74]
Primary mail server accepted SMTP connection and returned a banner during the live audit.
unam.mx 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 ip4:132.247.28.137 ip4:132.247.190.11 ip4:132.248.10.70 ip4:132.248.10.100 ip4:132.248.165.142 ip4:132.248.165.143 ip4:132.248.165.144 ip4:132.248.165.145 ip4:132.248.165.146 ip4:132.248.165.149 ip4:132.248.165.150 ip4:132.248.165.151 ip4:132.248.165.152 ip4:132.248.165.153 ip4:132.248.165.154 ip4:132.248.10.3 ip4:132.248.10.4 include:spf.protection.outlook.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:rua_dmarc@unam.mx; ruf=mailto:reporterua_dmarc@unam.mx; fo=0:1;
Monitoring only. Receivers take no action when SPF or DKIM fails.
unam.mx Domain Registration WHOIS · Nameservers · Registrar
RegistrarAKKY ONLINE SOLUTIONS, S.A. DE C.V.
IANA ID1705
RegisteredMarch 31, 1989
Last UpdatedMarch 27, 2026
ExpiresMarch 30, 2027
Age37 years
TLD.mx
Authoritative Nameservers (2)
- ns3.unam.mx
- ns4.unam.mx
Registrant
UNAM
Mexico, Distrito Federal, MEXICO
Technical Contact
ALEJANDRO CRUZ SANTOS
Mexico, Ciudad de Mexico, MEXICO
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Common Questions About unam.mx
Is unam.mx a disposable or temporary email provider?
No. unam.mx is not a disposable email provider. It is classified as Education Email operated by National Autonomous University of Mexico and addresses on unam.mx are persistent rather than throwaway. Mail sent to a valid unam.mx mailbox reaches a real recipient.
How do I verify if a unam.mx email address is valid?
The fastest way to verify a unam.mx email address is to use our email checker. Enter any @unam.mx mailbox at the top of this page and our system performs a real-time SMTP handshake against unam.mx'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 unam.mx email exists without sending a message?
Yes. Our real-time email verification API connects directly to unam.mx'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 unam.mx mailbox is valid, full, or non-existent. The recipient never receives anything and never sees the check.
What are the MX records for unam.mx?
unam.mx currently publishes 1 mail exchange (MX) record. The primary MX is unam-mx.mail.protection.outlook.com, which is the first server contacted when other mail systems try to deliver email to a unam.mx 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 unam.mx.
Does unam.mx use SPF, DKIM, and DMARC email authentication?
unam.mx 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 @unam.mx is genuine, and unam.mx's DMARC policy of 'none' instructs receivers how to handle messages that fail those checks.
Why do emails to unam.mx bounce or get blocked?
Bounces from unam.mx 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 unam.mx'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 unam.mx's receivers trust you.
How can I verify a large list of unam.mx email addresses?
Our bulk email verifier accepts CSV or TXT uploads with thousands or millions of unam.mx addresses (or any mix of domains). Every address goes through 30+ checks including SMTP existence, unam.mx 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 unam.mx email addresses?
Yes, with normal hygiene. unam.mx is a legitimate email service and signups from @unam.mx 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 unam.mx by default.
What email format does unam.mx use for usernames?
Most unam.mx mailboxes follow common patterns like first.last@unam.mx, firstinitiallast@unam.mx, or first@unam.mx, but the actual local-part rules depend on National Autonomous University of Mexico. The only reliable way to confirm whether a specific @unam.mx 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 unam.mx risk score calculated?
The 0-to-100 risk score for unam.mx 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 unam.mx score is recomputed on every audit so it always reflects the live state of the domain.
Is unam.mx a valid education email domain?
Yes, unam.mx is a valid educational institution email domain operated by National Autonomous University of Mexico. It is used by students, faculty, and staff for academic correspondence.
Is unam.mx a disposable or temporary email provider?
No, unam.mx is not a disposable or temporary email provider. It is an institutional email domain. However, student email addresses may be deactivated after graduation depending on the institution's policy.
What mail server does unam.mx use?
unam.mx uses mail servers managed by or on behalf of National Autonomous University of Mexico. Many universities use Microsoft 365 or Google Workspace for their email infrastructure. Check the MX records section above for details.
Can I send marketing emails to unam.mx addresses?
You can send emails to unam.mx addresses with proper consent. Be aware that educational institutions often employ strict spam filtering, and student addresses may become inactive after graduation. Regular list hygiene is recommended.
How do I verify an email address at unam.mx?
Use BulkEmailChecker to verify unam.mx addresses. Educational domains may use catch-all configurations or have specific SMTP behaviors. Our tool handles these institution-specific configurations automatically.