Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
skillbuilders.be
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 04:29:46 UTC · ↺ Refresh
MX Hostnames
- de-smtp-inbound-2.mimecast.com
- de-smtp-inbound-1.mimecast.com
MX Priorities
- de-smtp-inbound-1.mimecast.com: 10
- de-smtp-inbound-2.mimecast.com: 10
A / AAAA Records
- 188.208.36.246 ↩ 188.208.36.246.static.hosted.by.combell-ops.net
- 2a00:1c98:1000:1294::3:be2b:8f7a (no PTR)
Mail Server IPs
- 194.104.110.22 ↩ de-smtp-inbound-1.mimecast.com
- 194.104.108.22 ↩ de-smtp-inbound-2.mimecast.com
SOA Record
Raw SOA
ns.nscluster.eu hostmaster.nscluster.eu 2026032701 7200 3600 1209600 901
Primary NS (mname)
ns.nscluster.eu
Admin Email (rname)
hostmaster@nscluster.eu
Serial
2026032701
Refresh
7200s
Retry
3600s
Expire
1209600s
Minimum TTL
901s
Nameservers (NS)
ns.nscluster.us
ns.nscluster.no
ns.nscluster.eu
ns.nscluster.uk
ns.nscluster.pt
SPF Record
✓ Strict (-all)
v=spf1 ip4:40.114.216.76 ip4:84.199.38.196 ip4:193.53.238.200 ip4:83.217.70.242 ip4:198.37.153.132 ip4:84.199.38.205 ip4:84.199.38.210 ip4:84.199.38.211 ip4:54.240.3.4 include:spf.protection.outlook.com include:spf.cloud2be.net include:eur.pb-dynmktge.com include:spf.mandrillapp.com include:sendgrid.net include:de._netblocks.mimecast.com -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._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
24 records- piqmn5u3hk2ohibp7m294k73tl
- apple-domain-verification=DaWq9Bc2bWzBoF3W
- MS=ms37342154
- google-site-verification=5jusT87Ti3poGg9-cO0QEL3ej4pEMCDcAYndL7rEnqM
- MS=ms73800137
- atlassian-domain-verification=TEPEREn6HnsmPHW/Ex5H43ApqEiuO6tk5s5CGCsghlvt/k1fYB6x/rRBROaIjiCB
- have-i-been-pwned-verification=1fd48012b106dd3a495ead4e000a540e
- coRKHZywwkkDjpuxvtGcrK7ZXFaVONq6
- SPFv=spf1 ip4:40.114.216.76 ip4:84.199.38.196 ip4:193.53.238.200 ip4:83.217.70.242 ip4:198.37.153.132 ip4:84.199.38.205 ip4:84.199.38.210 ip4:84.199.38.211 ip4:54.240.3.4 include:spf.protection.outlook.com include:spf.cloud2be.net include:eur.pb-dynmktge.com include:spf.mandrillapp.com include:sendgrid.net include:de._netblocks.mimecast.com -all
- 0ed1fe018ad8500416297b4c44a07b2eb2e979c344
- l4+Pl+JkznXFQuxaYIzZujZVN1icVuxJGdEkmpdIe1SkA3EEoRM9zbCEOywTcVKRfomPMnyUTrpqJAQ+4tdMkg==
- cisco-ci-domain-verification=2c9574bece92bfdbb196541dc87f5dae4d987820524bd7a2840f22038811b99b
- DKIMv=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCrLHiExVd55zd/IQ/J/mRwSRMAocV/hMB3jXwaHH36d9NaVynQFYV8NaWi69c1veUtRzGt7yAioXqLj7Z4TeEUoOLgrKsn8YnckGs9i3B3tVFB+Ch/4mPhXWiNfNdynHWBcPcbJ8kjEQ2U8y78dHZj1YeRXXVvWob2OaKynO8/lQIDAQAB;
- d365mktkey=hf9NGi1mKaqa8xhEWZTngoRFWolMZLXi54M2DAq6qoUx
- google-site-verification=UNivalfN_5VplpIvzpLnUUJerPXgM_pqNxKpsOxb0J8
- MS=ms27268060
- MS=ms33076749
- amazonses:4ryaTB04bTUNL6/DvSWtoUtScztphMh3zrqh+qXvliQ=
- facebook-domain-verification=epaa9glhetk29i3tzxfh0izldnzrji
- MS=A2B12B005AF552DF30882C18F33DFA77A678685A
- 4fc8a33828140bb6a6d17a5387ebf239bab8d313
- mh9nillbaqo7kn0osq9mfvhorm
- ep48if6j79elsqrnuocmd1jc0d
- cnt4nd96bvnbl4sl1p861217v4
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