Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
smdlearning.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 03:54:34 UTC · ↺ Refresh
MX Hostnames
- smdlearning-com.mail.protection.outlook.com
MX Priorities
- smdlearning-com.mail.protection.outlook.com: 10
A / AAAA Records
- 66.45.227.131 ↩ iris.xeedcore.com
Mail Server IPs
- 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
- 52.101.41.4 ↩ mail-sj2pr05cu00204.inbound.protection.outlook.com
- 52.101.194.3 ↩ mail-ch1pr04cu00103.inbound.protection.outlook.com
- 52.101.11.3 ↩ mail-sn1pr0501cu00103.inbound.protection.outlook.com
- 2a01:111:f403:c946::2 ↩ mail-ch4pr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:c92c::4 ↩ mail-dm6pr05cu00404.inbound.protection.outlook.com
- 2a01:111:f403:c946::7 ↩ mail-ch5pr02cu00307.inbound.protection.outlook.com
- 2a01:111:f403:c927:: ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.hosting506.com iris.xeedcore.com 2026032401 3600 1800 1209600 86400
Primary NS (mname)
ns1.hosting506.com
Admin Email (rname)
iris@xeedcore.com
Serial
2026032401
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns1.hosting506.com
ns4.hosting506.com
ns2.hosting506.com
ns3.hosting506.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:66.45.227.131 ip4:173.214.175.172 include:relay.mailnetwork.net +include:spf.protection.outlook.com include:relay.hosting506.net include:relay.mailchannels.net -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;sp=none;adkim=r;aspf=r;pct=80;fo=0;rf=afrf;ri=86400;rua=mailto:[email protected];ruf=mailto:[email protected]:35 PM 3/4/2023
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
⚠ Policy applies to 80% of failing messages only
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 ip4:66.45.227.131 ip4:173.214.175.172 include:relay.mailnetwork.net +include:spf.protection.outlook.com include:relay.hosting506.net include:relay.mailchannels.net -all
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