Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cun.edu.co
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-27 07:51:38 UTC · ↺ Refresh
MX Hostnames
- aspmx.l.google.com
- alt4.aspmx.l.google.com
- alt1.aspmx.l.google.com
- alt3.aspmx.l.google.com
- alt2.aspmx.l.google.com
MX Priorities
- aspmx.l.google.com: 1
- alt3.aspmx.l.google.com: 10
- alt4.aspmx.l.google.com: 10
- alt1.aspmx.l.google.com: 5
- alt2.aspmx.l.google.com: 5
A / AAAA Records
- 44.214.71.42
Mail Server IPs
- 142.251.167.27 ↩ ww-in-f27.1e100.net
- 2607:f8b0:4004:c09::1a ↩ bh-in-f26.1e100.net
- 192.178.223.26 ↩ yulhrs-in-f26.1e100.net
- 2a00:1450:4009:c0f::1b ↩ yulhrs-in-f27.1e100.net
- 173.194.76.26 ↩ ws-in-f26.1e100.net
- 2a00:1450:400c:c00::1b ↩ ws-in-x1b.1e100.net
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
- 172.253.116.26 ↩ dj-in-f26.1e100.net
- 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
SOA Record
Raw SOA
ns-1300.awsdns-34.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1300.awsdns-34.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-899.awsdns-48.net
ns-125.awsdns-15.com
ns-1300.awsdns-34.org
ns-1769.awsdns-29.co.uk
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.google.com include:zcsend.net include:zoho.com include:zeptomail.net include:amazonses.com include:transmail.net. include:user.zohobookings.com ~all
📊 DNS lookups: 7/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
google._domainkey
✓ Public key: 216 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
11 records- MS=2313DC717A8F23ADA3F25F7980037020BCD0F040
- MS=ms18161729
- ch99af1ebpbuf435usitmijv0j
- google-site-verification=60yBlGziWkpQ57ggSIOlABshkJ_ry58mbXvc8JX3J9k
- j4vg1b85qn91215g41bkj7wxcpkf41cs
- SPFv=spf1 include:_spf.google.com include:zcsend.net include:zoho.com include:zeptomail.net include:amazonses.com include:transmail.net. include:user.zohobookings.com ~all
- zoho-verification=zb31223129.zmverify.zoho.com
- zoho-verification=zb47864005.zmverify.zoho.com
- 07192022
- 7F5MZfs_VHiUaef-1P_kzpPKLd5iN4J1tqePiiaMFzA
- 7d2n6igk7dasdcdsq76ecarusv
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