Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
irs-group.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 03:28:41 UTC · ↺ Refresh
MX Hostnames
- irsgroup-com0i.mail.protection.outlook.com
MX Priorities
- irsgroup-com0i.mail.protection.outlook.com: 10
A / AAAA Records
- 147.78.88.42 ↩ vm05.irs.mcs.cloud
Mail Server IPs
- 52.101.73.8 ↩ mail-am0pr04cu00500.inbound.protection.outlook.com
- 52.101.73.1 ↩ mail-am3pr04cu00501.inbound.protection.outlook.com
- 52.101.73.22 ↩ mail-am7pr05cu00106.inbound.protection.outlook.com
- 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca09::3 ↩ mail-am6pr04cu00303.inbound.protection.outlook.com
- 2a01:111:f403:ca04::10 ↩ mail-dbapr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09:: ↩ mail-am3pr04cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca04::f ↩ mail-db7pr03cu00507.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.mcs.de hostmaster.mcs.de 2025120800 28800 7200 604800 6600
Primary NS (mname)
ns1.mcs.de
Admin Email (rname)
hostmaster@mcs.de
Serial
2025120800
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
6600s
Nameservers (NS)
ns2.mcs.de
ns1.mcs.de
ns3.mcs.de
SPF Record
✓ Strict (-all)
v=spf1 a mx a:mailsec.schiffl.de ip4:176.95.0.76 ip4:2.207.160.59 a:remote.irs-group.com include:spf.protection.outlook.com include:spf-westeu.emailsignatures365.com include:_spf.mailgun.org include:_spf.eu.mailgun.org -all
📊 DNS lookups: 8/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; 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
✓ Public key: 216 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
8 records- google-site-verification=reBQh4aVGdJqBGrSmBu7ChsbRL7vJr_wwE5b71g5Kuk
- SPFv=spf1 a mx a:mailsec.schiffl.de ip4:176.95.0.76 ip4:2.207.160.59 a:remote.irs-group.com include:spf.protection.outlook.com include:spf-westeu.emailsignatures365.com include:_spf.mailgun.org include:_spf.eu.mailgun.org -all
- DuPFYGp8qCgaaobyQltQPMKARZx1tOeP
- sophos-domain-verification=d92a68b80fa269796c0c02503e8066de4c53d22add4f5ed2e716dc76fd94a417
- MS=ms21370855
- atlassian-domain-verification=Ya9is/iLmviXkcrGRi812SJzKD/KPEwLczgeoHIrZyXssHwFs56csEkmKvRuFXTh
- linkedin-site-verification=8f2ab916-da39-42ed-8615-6cfc2a675559
- google-site-verification=9hulzReEKZrYzJznWdOdQcYvIC1vCClmPhLowmH--I4
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