MailSure

Is westpac.com.au a valid email domain?

Organisation domainChecked 2026-11-06

westpac.com.au has working mail routing: 2 MX records pointing to Microsoft (Outlook or Microsoft 365), led by westpac-com-au.mail.protection.outlook.com.

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 westpac.com.au

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MX records (Microsoft (Outlook or Microsoft 365))

PriorityMail serverResolves to
10westpac-com-au.mail.protection.outlook.com52.101.149.1, 52.101.149.54
11westpac-com.mail.protection.outlook.com52.101.149.1, 52.101.149.54

SPF

Record published

v=spf1 include:spf1.westpac.com.au include:spf2.westpac.com.au include:spf1.stgeorge.com.au include:spf.protection.outlook.com -all

DMARC

Policy: reject

v=DMARC1; p=reject; fo=1; rua=mailto:dmarc_agg@vali.email; ruf=mailto:dmarc-ruf-wbc@westpac.com.au

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

westpac.com.au looks like an organisation's own domain. Those are usually good leads, and also where bounces come from: people change jobs and mailboxes get closed. Checking each address, including whether the server accepts any recipient, avoids damaging your sender reputation.

Sender authentication

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

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Frequently asked questions

Is westpac.com.au a valid email domain?
Yes. westpac.com.au 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 westpac.com.au a disposable email domain?
No. westpac.com.au 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 westpac.com.au?
westpac-com-au.mail.protection.outlook.com (priority 10); westpac-com.mail.protection.outlook.com (priority 11).
Does westpac.com.au have SPF and DMARC?
SPF: yes, ending -all. DMARC: yes, policy reject.

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