MailSure

Is stadio.ac.za a valid email domain?

Organisation domainChecked 2026-11-06

Mail for stadio.ac.za is handled by 1 server at Microsoft (Outlook or Microsoft 365), with stadio-ac-za.mail.protection.outlook.com tried first.

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 reject.

Check an email address at stadio.ac.za

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MX records (Microsoft (Outlook or Microsoft 365))

PriorityMail serverResolves to
0stadio-ac-za.mail.protection.outlook.com52.101.91.21, 52.101.91.156

SPF

Record published

v=spf1 ip4:40.127.0.0/16 ip4:167.89.0.0/17 ip4:168.245.0.0/17 ip4:209.85.128.0/17 ip4:167.89.63.49 ip4:105.242.157.66 ip4:105.242.157.65 ip4:168.245.23.173 ip4:3.219.176.96/29 ip4:3.64.95.16/29 ip4:44.192.35.0/24 ip4:18.64.0.0/10 ip4:18.32.0.0/11 ip4:18.128.0.0/9 ip4:198.37.144.0/20 ip4:3.120.181.192/28 ip4:154.73.186.179 ip4:196.31.151.58 ip4:41.24.115.202 ip4:41.198.159.187 ip4:159.183.76.73 ip4:41.198.137.215 ip4:154.117.147.218 ip4:41.76.228.33 ip4:102.223.98.186 ip4:105.242.24.122 ip4:41.24.216.205 ip4:105.242.208.7 ip4:102.67.177.72 ip4:41.198.154.5 include:spf.protection.outlook.com include:spf.eu.exclaimer.net include:spf.us.exclaimer.net include:spf.uk.exclaimer.net include:sendgrid.net -all

DMARC

Policy: reject

v=DMARC1; p=reject; rua=mailto:dmarc-security@stadio.ac.za

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 stadio.ac.za 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 The risk is the mailbox: outdated contacts, shared inboxes and catch-all servers.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

stadio.ac.za has a strict DMARC policy (reject): mail that fails authentication is refused, which protects its brand from spoofing and means anyone sending as stadio.ac.za must have SPF and DKIM set up correctly.

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Frequently asked questions

Is stadio.ac.za a valid email domain?
Yes. stadio.ac.za publishes 1 MX record and can receive email. Whether a particular mailbox exists is a separate question that only a mailbox check can answer.
Is stadio.ac.za a disposable email domain?
No. stadio.ac.za 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 stadio.ac.za?
stadio-ac-za.mail.protection.outlook.com (priority 0).
Does stadio.ac.za have SPF and DMARC?
SPF: yes, ending -all. DMARC: yes, policy reject.

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