Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sluhn.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 01:45:06 UTC · ↺ Refresh
MX Hostnames
- sluhn-org.mail.protection.outlook.com
MX Priorities
- sluhn-org.mail.protection.outlook.com: 10
A / AAAA Records
- 52.226.134.64 (no PTR)
Mail Server IPs
- 52.101.11.2 ↩ mail-sn1pr03cu00102.inbound.protection.outlook.com
- 52.101.11.19 ↩ mail-sa9pr04cu00203.inbound.protection.outlook.com
- 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
- 52.101.10.2 ↩ mail-bn8pr03cu00202.inbound.protection.outlook.com
- 2a01:111:f403:c92c::3 ↩ mail-dm5pr04cu00103.inbound.protection.outlook.com
- 2a01:111:f403:c946::3 ↩ mail-ch0pr04cu00603.inbound.protection.outlook.com
- 2a01:111:f403:c902::4 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
- 2a01:111:f403:c91d::a ↩ mail-co1pr21cu00202.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.ral.hostedsolutions.com hostmaster.hostedsolutions.com 2013062795 3600 3600 86400 86400
Primary NS (mname)
ns1.ral.hostedsolutions.com
Admin Email (rname)
hostmaster@hostedsolutions.com
Serial
2013062795
Refresh
3600s
Retry
3600s
Expire
86400s
Minimum TTL
86400s
Nameservers (NS)
ns1.clt.hostedsolutions.com
ns1.lit.hostedsolutions.com
ns1.ral.hostedsolutions.com
ns1.bos.hostedsolutions.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 5 found
selector1._domainkey
selector2._domainkey
k1._domainkey
s1._domainkey
s2._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
37 records- facebook-domain-verification=87eeypxnm6i7gih94nwiuv929mub8c
- d365mktkey=19ti5b1m529qid9h9kdwgydel
- msfpkey=7f13e3v21f7kw4ntc96qwhr0z
- facebook-domain-verification=r0aah40or4mh5r4qzv46mdlcdwhyqs
- facebook-domain-verification=jw5cbae0jcgt692ck5mpstbpfzicot
- facebook-domain-verification=ugva1a2ewyd00ae6lgstizsbh5fo3
- LFbyIhJftj4jLWmp/8yI6nwdP0bUJJXg/ldNCUv+Re5bza5cHhuDcdofnrBj3DCevA9LfT9eAndyP+/YQwyj0Q==
- facebook-domain-verification=in4xd4gct5js8a1qrud4irqcxdjoao
- d365mktkey=3w7e955stuh42exga3tbmf6yw
- facebook-domain-verification=6vhlqbd05drp31oktkrdl8peola0fo
- facebook-domain-verification=nxh8oi63dnfuubgdh6qpc3uuumj5a2
- facebook-domain-verification=ik9r35y6edfxe88ov93p0rerribo8m
- facebook-domain-verification=a6gszo4eha0basu6soojrrmxs3qrfk
- facebook-domain-verification=k0jn2tyjuq9n96jyadoz6h9bzszl3u
- facebook-domain-verification=ysmlrsz476aqxmwxl6lai0xijt8b1c
- apple-domain-verification=6nYdPrZRT4aeTDVt
- GygtXUynxPhtprLH1o86n+p2Bbbz9A9KP4B0aOHuzyJh5Cs4yxuL6P+2CLIhZhwWfdsUeKgcgyecSt5/0D7V8g==
- openai-domain-verification=dv-u6oepKyX4OQJcH9W2lzpyiW1
- m7yv0s8fyxjryldbr3k062wp6wbtmszq
- facebook-domain-verification=v3468bskzded0yjflynsn5gvlxle20
- facebook-domain-verification=ov84dbc4ezbwmng5wi40k5s7792m0d
- facebook-domain-verification=oqrrp9m8zlddqguwik6cetn2jf5f52
- openai-domain-verification=dv-cYJK71AoqCpD3GwLVRMaRQP1
- ciscocidomainverification=58b9c919bebbd54ade2352bf8250d92aafb0f1649247ccd903f38dc0624c22cb
- facebook-domain-verification=lnl4e69l878ifpuwgzp5pvsz7kg2ob
- d365mktkey=2t9yeqnlq98yeaxeow0uo3jwx
- e2ma-verification=hzveb
- facebook-domain-verification=ipsi3nrgntcw9stl2p01n0l62wwvd3
- SPFv=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all
- docusign=5002a5dd-0ba5-4630-9fcc-e42f09350c1f
- facebook-domain-verification=7rgvxlbh1dexpq1zdpo1eojm8xe89t
- mbch4q5zl48tz11zd1j9k06k1cxvg7l0
- docusign=e90b6f04-410c-4ff1-af8d-fd0252bf3f82
- MS=ms37596323
- facebook-domain-verification=5mj2on8uypx2qa5g0if5rhga8yhb9v
- shopify-verification-code=dWTfUFpMr4DCN9Kg0TtGhcmI0A6KtQ
- facebook-domain-verification=0k51b2p2hj3gflgv8qv0ml1dmf16nk
Full email verification for sluhn.org
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits