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cust.edu.pk

Email infrastructure report · Last checked

Summary

cust.edu.pk uses Microsoft 365 for email and has SPF, DKIM, and DMARC configured. It is not catch-all.

Mail provider

ProviderMicrosoft 365 business
Primary MXcust-edu-pk.mail.protection.outlook.com

MX records

PriorityHostnameIPs
0cust-edu-pk.mail.protection.outlook.com52.101.73.30, 52.101.73.16, 52.101.68.21, 52.101.68.15, 2a01:111:f403:ca04::b, 2a01:111:f403:ca09::8, 2a01:111:f403:ca04::f, 2a01:111:f403:ca09::7

Authentication

SPF✓ Present -all
DKIM✓ Found (selectors: selector1)
DMARC✓ Present p=quarantine
Raw SPF record
v=spf1 include:spf.protection.outlook.com -all
Raw DMARC record
v=DMARC1; p=quarantine; rua=mailto:postmaster@cust.edu.pk;

Email behavior

Catch-all✗ No
Disposable✗ No
Free provider✗ No
STARTTLS✓ Supported
SMTP response63ms
SMTP banner220 AMS0EPF0000019B.mail.protection.outlook.com Microsoft ESMTP MAIL Service ready at Fri, 24 Jul 2026 01:30:15 +0000 [08DEE8329AE4DCA0]

What this means

This domain has strong email authentication. Messages claiming to come from @cust.edu.pk can be cryptographically verified by recipients, making spoofing difficult. Deliverability for legitimate mail should be good.

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curl https://api.checkmail.dev/v1/verify \
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