Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
serve-first.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 23:30:31 UTC · ↺ Refresh
MX Hostnames
- servefirst-com01c.mail.protection.outlook.com
MX Priorities
- servefirst-com01c.mail.protection.outlook.com: 0
A / AAAA Records
- 151.101.66.159 (no PTR)
Mail Server IPs
- 52.101.9.0 ↩ mail-bl2pr02cu00100.inbound.protection.outlook.com
- 40.93.192.4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
- 52.101.8.51 ↩ mail-dm1pr04cu00203.inbound.protection.outlook.com
- 52.101.41.0 ↩ mail-byapr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:c801:: ↩ mail-sa9pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f908::1 ↩ mail-bn1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f804::2 ↩ mail-co1pr05cu00402.inbound.protection.outlook.com
- 2a01:111:f403:f909:: ↩ mail-bn6pr04cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-1438.awsdns-51.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1438.awsdns-51.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-358.awsdns-44.com
ns-598.awsdns-10.net
ns-1438.awsdns-51.org
ns-1841.awsdns-38.co.uk
SPF Record
✓ Soft Fail (~all)
v=spf1 include:us._netblocks.mimecast.com include:_spf.salesforce.com include:spf.protection.outlook.com include:_spf.iriscrm.com ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; pct=100; rua=mailto:[email protected], mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected], mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 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
3 records- smtp14-dfw-sp3.mta.salesforce.com -all
- SPFv=spf1 include:us._netblocks.mimecast.com include:_spf.salesforce.com include:spf.protection.outlook.com include:_spf.iriscrm.com ~all
- 0ed1fe018ae66631ab105a48e1b47a0ce57d4125d4
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