MailSure

Is tamu.edu a valid email domain?

Organisation domainChecked 2026-11-06

tamu.edu can receive email. It publishes 2 mail servers, and the first choice is tamu-relay.tamu.edu.

It is not a free provider and is not on our disposable list, so addresses here usually belong to a company, school or other organisation.

SPF is published and ends with -all. DMARC is set to quarantine.

Check an email address at tamu.edu

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MX records

PriorityMail serverResolves to
10tamu-relay.tamu.edu148.163.135.245, 148.163.139.245
100smtp-relay.tamu.edu148.163.139.245, 148.163.135.245

SPF

Record published

v=spf1 include:spf0.tamu.edu include:spf1.tamu.edu include:spf2.tamu.edu include:spf3.tamu.edu include:spf4.tamu.edu include:spf5.tamu.edu include:spf6.tamu.edu include:spf7.tamu.edu include:spf8.tamu.edu -all

DMARC

Policy: quarantine

v=DMARC1;p=quarantine;sp=none;fo=1;rua=mailto:dmarc@tamu.edu,mailto:dmarc_rua@emaildefense.proofpoint.com;ruf=mailto:dmarc@tamu.edu,mailto:dmarc_ruf@emaildefense.proofpoint.com

Disposable?

No, not on our disposable list.

Free provider?

No, not a known free provider.

What this means for your email list

What this means for addresses at this domain

Mail routing for tamu.edu is healthy, so the domain is not the risk. The risk is the mailbox: outdated contacts, shared inboxes and catch-all servers. A mailbox-level check tells you which addresses are safe to send to.

Sender authentication

tamu.edu uses a DMARC quarantine policy: mail that fails authentication is sent to spam. That is a sound middle step, and a good sign the owner looks after their email setup.

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Frequently asked questions

Is tamu.edu a valid email domain?
Yes. tamu.edu publishes 2 MX records and can receive email. Whether a particular mailbox exists is a separate question that only a mailbox check can answer.
Is tamu.edu a disposable email domain?
No. tamu.edu is not on our disposable list. The list is updated regularly, and new throwaway domains appear all the time.
What are the MX records for tamu.edu?
tamu-relay.tamu.edu (priority 10); smtp-relay.tamu.edu (priority 100).
Does tamu.edu have SPF and DMARC?
SPF: yes, ending -all. DMARC: yes, policy quarantine.

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