Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
jer.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-18 03:04:40 UTC · ↺ Refresh
MX Hostnames
- jer-com.mail.protection.outlook.com
MX Priorities
- jer-com.mail.protection.outlook.com: 5
A / AAAA Records
- 173.66.2.11 ↩ pool-173-66-2-11.washdc.fios.verizon.net
Mail Server IPs
- 52.101.9.2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
- 52.101.41.58 ↩ mail-sj0pr02cu00102.inbound.protection.outlook.com
- 52.101.41.180 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 52.101.9.21 ↩ mail-bl2pr04cu00205.inbound.protection.outlook.com
- 2a01:111:f403:f912:: ↩ mail-cy5pr03cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f802::2 ↩ mail-sj2pr05cu00202.inbound.protection.outlook.com
- 2a01:111:f403:c902::5 ↩ mail-sj2pr05cu00505.inbound.protection.outlook.com
- 2a01:111:f403:f90f:: ↩ mail-sa9pr04cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns2.no-ip.com hostmaster.no-ip.com 2025110704 10800 1800 604800 1800
Primary NS (mname)
ns2.no-ip.com
Admin Email (rname)
hostmaster@no-ip.com
Serial
2025110704
Refresh
10800s
Retry
1800s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
ns2.no-ip.com
ns3.no-ip.com
ns4.no-ip.com
ns1.no-ip.com
SPF Record
✓ Strict (-all)
v=spf1 a:mail1.jer.com a:jermc261.jer.com mx:jer-com.mail.protection.outlook.com include:spf.protection.outlook.com include:no-ip.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 a:mail1.jer.com a:jermc261.jer.com mx:jer-com.mail.protection.outlook.com include:spf.protection.outlook.com include:no-ip.com -all
- trustcor-ca-lIxgeZFkT9CCdZlmBe4GyOGKyNxkGOT8FMbLgXrUQgAKgJJC1LWWPx+Y4LFFgX0sikBHW825z1/Fo8H2V/ZzFhXKdlH3FfmZcTUrCubYP3wlRzP5DCxIPgcdLid5LqiI9w2FKGY/9FOUWh1F/tqg
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