Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
mainsourcemgt.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 21:51:50 UTC · ↺ Refresh
MX Hostnames
- mainsourcemgt-com.mail.protection.outlook.com
MX Priorities
- mainsourcemgt-com.mail.protection.outlook.com: 0
A / AAAA Records
- 141.193.213.10 (no PTR)
- 141.193.213.11 (no PTR)
Mail Server IPs
- 52.101.8.51 ↩ mail-dm1pr04cu00203.inbound.protection.outlook.com
- 52.101.41.183 ↩ mail-byapr04cu00307.inbound.protection.outlook.com
- 52.101.41.26 ↩ mail-sj0pr03cu01702.inbound.protection.outlook.com
- 52.101.194.12 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
- 2a01:111:f403:c922::1 ↩ mail-bl0pr05cu00501.inbound.protection.outlook.com
- 2a01:111:f403:f804::3 ↩ mail-co1pr03cu00403.inbound.protection.outlook.com
- 2a01:111:f403:c946::6 ↩ mail-ch5pr02cu00406.inbound.protection.outlook.com
- 2a01:111:f403:f90f:: ↩ mail-sa9pr04cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
leah.ns.cloudflare.com dns.cloudflare.com 2396949178 10000 2400 604800 1800
Primary NS (mname)
leah.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2396949178
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
rob.ns.cloudflare.com
leah.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 +a +mx +ip4:67.225.152.101 include:spf.protection.outlook.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;sp=quarantine;adkim=r;aspf=r;pct=100;fo=1;rf=afrf;ri=86400;rua=mailto:[email protected];ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
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
2 records- SPFv=spf1 +a +mx +ip4:67.225.152.101 include:spf.protection.outlook.com ~all
- MS=ms58983976
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