Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
colgafas.com
Yes
✓ Yes
Mailgun
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 10:50:01 UTC · ↺ Refresh
MX Hostnames
- mxb.mailgun.org
- mxa.mailgun.org
MX Priorities
- mxa.mailgun.org: 10
- mxb.mailgun.org: 10
A / AAAA Records
- 99.84.234.26 ↩ server-99-84-234-26.jfk50.r.cloudfront.net
- 99.84.234.49 ↩ server-99-84-234-49.jfk50.r.cloudfront.net
- 99.84.234.100 ↩ server-99-84-234-100.jfk50.r.cloudfront.net
- 99.84.234.107 ↩ server-99-84-234-107.jfk50.r.cloudfront.net
Mail Server IPs
- 34.160.13.42 ↩ 42.13.160.34.bc.googleusercontent.com
- 34.160.63.108 ↩ 108.63.160.34.bc.googleusercontent.com
SOA Record
Raw SOA
ns-841.awsdns-41.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-841.awsdns-41.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1947.awsdns-51.co.uk
ns-841.awsdns-41.net
ns-1103.awsdns-09.org
ns-138.awsdns-17.com
SPF Record
✓ Strict (-all)
v=spf1 include:mailgun.org -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict 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
k1._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: k1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- SPFv=spf1 include:mailgun.org -all
- facebook-domain-verification=qgczc1j40l8okrpkkwyr0y6h2wmb72
- google-site-verification=fb9CP9CK6EOpf72Tf-HslUOnkG___ZtFyF05OfBveqU
Full email verification for colgafas.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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