Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
syb.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-30 02:17:44 UTC · ↺ Refresh
MX Hostnames
- mx1.hc2401-32.iphmx.com
- mx2.hc2401-32.iphmx.com
MX Priorities
- mx2.hc2401-32.iphmx.com: 15
- mx1.hc2401-32.iphmx.com: 10
A / AAAA Records
- 23.23.114.239 ↩ ec2-23-23-114-239.compute-1.amazonaws.com
- 100.49.149.91 ↩ ec2-100-49-149-91.compute-1.amazonaws.com
- 54.236.89.165 ↩ ec2-54-236-89-165.compute-1.amazonaws.com
Mail Server IPs
- 216.71.148.21 ↩ esa2.hc2401-32.iphmx.com
- 68.232.140.142 ↩ esa1.hc2401-32.iphmx.com
SOA Record
Raw SOA
pdns87.ultradns.com it\.infrastructure.syb.com 2014022884 10800 900 2419200 10800
Primary NS (mname)
pdns87.ultradns.com
Admin Email (rname)
it\@infrastructure.syb.com
Serial
2014022884
Refresh
10800s
Retry
900s
Expire
2419200s
Minimum TTL
10800s
Nameservers (NS)
pdns87.ultradns.net
pdns87.ultradns.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 5 found
selector1._domainkey
selector2._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 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
7 records- google-site-verification=JFhKRS1bNzsh3yKQqr3UpIU5UqmFxEdmTaKc5NdGaEw
- cisco-ci-domain-verification=41b2cf8b2d3d3a89dbea2ddcd9d7710d60b455eceae24e6040b55922f7cf3b13
- matillion:syb-com-saml
- MS=D11412E17DD75E08FD5C93289923030984EEA889
- knowbe4-site-verification=61b3e8a7e1054be63e9c09d6751f2dcd
- SPFv=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all
- google-site-verification=A2zP0IT-V8T6LJ-COZ7pYa2-TGOsneqCEhoQ_rZGykM
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