Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
smumn.edu
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-26 06:08:55 UTC · ↺ Refresh
MX Hostnames
- smtp.google.com
MX Priorities
- smtp.google.com: 1
A / AAAA Records
- 162.159.134.42 (no PTR)
Mail Server IPs
- 142.251.163.26 ↩ wv-in-f26.1e100.net
- 64.233.180.27 ↩ on-in-f27.1e100.net
- 142.251.16.26 ↩ bl-in-f26.1e100.net
- 142.251.16.27 ↩ bl-in-f27.1e100.net
- 142.251.163.27 ↩ wv-in-f27.1e100.net
- 2607:f8b0:4004:c1b::1a ↩ wv-in-f26.1e100.net
- 2607:f8b0:4004:c21::1b ↩ pe-in-f27.1e100.net
- 2607:f8b0:4004:c17::1a ↩ bl-in-f26.1e100.net
- 2607:f8b0:4004:c17::1b ↩ bl-in-f27.1e100.net
SOA Record
Raw SOA
ns1.smumn.edu serverstatus.smumn.edu 2026032602 43200 7200 2419201 10800
Primary NS (mname)
ns1.smumn.edu
Admin Email (rname)
serverstatus@smumn.edu
Serial
2026032602
Refresh
43200s
Retry
7200s
Expire
2419201s
Minimum TTL
10800s
Nameservers (NS)
ns1.smumn.edu
ns2.smumn.edu
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf0000000.smumn.edu ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=reject; rua=mailto:[email protected],mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected],mailto:[email protected]; aspf=r; fo=1; pct=100; ri=3600;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected],mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 3 found
google._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 include:_spf0000000.smumn.edu ~all
- 1bt2ga6i122kdsf5p3f0to3q6h
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for smumn.edu
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits