Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
pieper.com
Yes
✓ Yes
Symantec
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-19 07:06:08 UTC · ↺ Refresh
MX Hostnames
- cluster1.us.messagelabs.com
- cluster1a.us.messagelabs.com
MX Priorities
- cluster1a.us.messagelabs.com: 20
- cluster1.us.messagelabs.com: 10
A / AAAA Records
- 162.159.137.9 (no PTR)
Mail Server IPs
- 34.75.172.113 ↩ 113.172.75.34.bc.googleusercontent.com
- 67.219.247.204 ↩ mail931.messagelabs.com
- 67.219.246.210 ↩ mail909.messagelabs.com
- 67.219.247.202 ↩ mail930.messagelabs.com
- 67.219.250.218 ↩ mail951.messagelabs.com
- 67.219.246.215 ↩ mail901.messagelabs.com
- 67.219.250.215 ↩ mail948.messagelabs.com
- 67.219.246.208 ↩ mail907.messagelabs.com
- 67.219.247.106 ↩ mail923.messagelabs.com
SOA Record
Raw SOA
ns3.worldnic.com namehost.worldnic.com 126031312 10800 3600 604800 3600
Primary NS (mname)
ns3.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126031312
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns4.worldnic.com
ns3.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 mx a:notes.pieper.com a:mail.rightsize.com a:webmail.pieper.com include:spf.protection.outlook.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;pct=100;rua=mailto:[email protected];ruf=mailto:[email protected];ri=86400;aspf=s;adkim=s;fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 13 found
google._domainkey
selector1._domainkey
selector2._domainkey
default._domainkey
mail._domainkey
dkim._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
sendgrid._domainkey
mxvault._domainkey
amazonses._domainkey
⚠ Public key (p=) missing in DKIM record for selector google.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- SPFv=spf1 mx a:notes.pieper.com a:mail.rightsize.com a:webmail.pieper.com include:spf.protection.outlook.com -all
- duo_sso_verification=qxz3nyJABX2F0ptzb9kVXd37K8WFL21GWFDvNXGJMtdhcy98uVP6An93qUDtL6HB
- _7qucr2wb0u2qqwvmnr55w7i30v66f6o
Full email verification for pieper.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits