Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
colorado.aaa.com
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 13:46:57 UTC · ↺ Refresh
MX Hostnames
- mxa-002ef201.gslb.pphosted.com
- mxb-002ef201.gslb.pphosted.com
MX Priorities
- mxa-002ef201.gslb.pphosted.com: 10
- mxb-002ef201.gslb.pphosted.com: 10
A / AAAA Records
- 199.36.158.100 (no PTR)
Mail Server IPs
- 148.163.147.195 ↩ mx0a-002ef201.pphosted.com
SOA Record
Raw SOA
ns-1171.awsdns-18.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1171.awsdns-18.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-411.awsdns-51.com
ns-788.awsdns-34.net
ns-1171.awsdns-18.org
ns-1783.awsdns-30.co.uk
SPF Record
✓ Strict (-all)
v=spf1 mx a ip4:74.202.170.4 ip4:173.227.190.163 ip4:209.82.215.81 ip4:63.240.178.81 ip4:136.184.78.0/27 ip4:136.184.110.0/27 ip4:204.10.146.19 include:es._spf.adp.com include:mailcontrol.com include:spf.protection.outlook.com include:_spf.qualtrics.com include:spf-002ef201.pphosted.com -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;fo=1;rua=mailto:[email protected];ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- MS=ms28181291
- SPFv=spf1 mx a ip4:74.202.170.4 ip4:173.227.190.163 ip4:209.82.215.81 ip4:63.240.178.81 ip4:136.184.78.0/27 ip4:136.184.110.0/27 ip4:204.10.146.19 include:es._spf.adp.com include:mailcontrol.com include:spf.protection.outlook.com include:_spf.qualtrics.com include:spf-002ef201.pphosted.com -all
- zscaler-verification-134272523-11062025-K#7B310NR
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