Domain Overview
DNS: ✓ 12h ago
Checker: ✓ 12h ago
bycor.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-05-20 09:39:17 UTC · ↺ Refresh
MX Hostnames
- bycor.com.2.0001.arsmtp.com
- bycor.com.1.0001.arsmtp.com
MX Priorities
- bycor.com.2.0001.arsmtp.com: 20
- bycor.com.1.0001.arsmtp.com: 10
A / AAAA Records
- 69.43.139.172 (no PTR)
Mail Server IPs
- 8.19.118.179 ↩ server255.appriver.com
- 8.31.233.88 ↩ server254.appriver.com
SOA Record
Raw SOA
ns79.worldnic.com namehost.worldnic.com 126021215 10800 3600 604800 3600
Primary NS (mname)
ns79.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126021215
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns79.worldnic.com
ns80.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:12.222.97.226 ip4:69.43.139.101 ip4:69.43.139.94 ip4:69.43.139.7 include:edgepilot.com include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=reject; rua=mailto:[email protected]; rf=afrf; pct=100; ri=86400
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- 34918f24-07b5-4177-9927-1427d24697d0
- SPFv=spf1 ip4:12.222.97.226 ip4:69.43.139.101 ip4:69.43.139.94 ip4:69.43.139.7 include:edgepilot.com include:spf.protection.outlook.com -all
- MS=ms27531570
Full email verification for bycor.com
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