Domain Overview
DNS: ✓ just now
Checker: ✓ just now
issimro.com
Disposable
✓ Yes
Outlook
⚠ Yes
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-06-01 20:16:54 UTC · ↺ Refresh
MX Hostnames
- issimro-com.mail.protection.outlook.com
MX Priorities
- issimro-com.mail.protection.outlook.com: 10
A / AAAA Records
- 199.231.106.60 (no PTR)
Mail Server IPs
- 52.101.194.19 ↩ mail-ch5pr02cu00303.inbound.protection.outlook.com
- 52.101.11.15 ↩ mail-sa9pr02cu00207.inbound.protection.outlook.com
- 52.101.41.183 ↩ mail-byapr04cu00307.inbound.protection.outlook.com
- 52.101.9.12 ↩ mail-bl0pr05cu00504.inbound.protection.outlook.com
- 2a01:111:f403:c946::4 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
- 2a01:111:f403:c946:: ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f90a:: ↩ mail-bn6pr02cu00300.inbound.protection.outlook.com
SOA Record
Raw SOA
dnsmaster.atrg.com dnsadmin.atrg.com 2020111914 900 600 259200 3600
Primary NS (mname)
dnsmaster.atrg.com
Admin Email (rname)
dnsadmin@atrg.com
Serial
2020111914
Refresh
900s
Retry
600s
Expire
259200s
Minimum TTL
3600s
Nameservers (NS)
ns5.atrg.com
ns3.atrg.com
ns4.atrg.com
SPF Record
✓ Soft Fail (~all)
v=spf1 mx a ip4:158.85.50.219 include:spf.protection.outlook.com include:spf.us.exclaimer.net ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; sp=reject; ruf=mailto:[email protected]; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 mx a ip4:158.85.50.219 include:spf.protection.outlook.com include:spf.us.exclaimer.net ~all
- MS=ms88519024
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