Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
iscc-system.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-30 11:39:31 UTC · ↺ Refresh
MX Hostnames
- isccsystem-org01b.mail.protection.outlook.com
MX Priorities
- isccsystem-org01b.mail.protection.outlook.com: 0
A / AAAA Records
- 148.251.39.231 ↩ k55m63.meinserver.io
Mail Server IPs
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
dns1.registrar-servers.com hostmaster.registrar-servers.com 1773147948 43200 3600 604800 3601
Primary NS (mname)
dns1.registrar-servers.com
Admin Email (rname)
hostmaster@registrar-servers.com
Serial
1773147948
Refresh
43200s
Retry
3600s
Expire
604800s
Minimum TTL
3601s
Nameservers (NS)
dns1.registrar-servers.com
dns2.registrar-servers.com
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx include:spf.protection.outlook.com include:spf.nl2go.com include:_spf.eu.mailgun.org include:_spf1.mailgun.org include:_spf2.mailgun.org ~all
📊 DNS lookups: 7/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=90; sp=none
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: none
⚠ Policy applies to 90% of failing messages only
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
6 records- brevo-code:f41f1589636c7944d843579a27e07d2b
- knowbe4-site-verification=692f31c01384f7767bb199c0864ce194
- SPFv=spf1 a mx include:spf.protection.outlook.com include:spf.nl2go.com include:_spf.eu.mailgun.org include:_spf1.mailgun.org include:_spf2.mailgun.org ~all
- MS=ms21310879
- lw=64c264ca337f147f785e155f
- apple-domain-verification=99ytjW0vhagGPX1L
Full email verification for iscc-system.org
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