Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
hollandcollege.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 10:07:46 UTC · ↺ Refresh
MX Hostnames
- hollandcollege-com.mail.protection.outlook.com
MX Priorities
- hollandcollege-com.mail.protection.outlook.com: 5
A / AAAA Records
- 142.87.248.244 (no PTR)
Mail Server IPs
- 52.101.190.3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com
- 52.101.190.2 ↩ mail-yt3pr01cu00602.inbound.protection.outlook.com
- 52.101.190.0 ↩ mail-yt5pr01cu00100.inbound.protection.outlook.com
- 52.101.192.1 ↩ mail-yqzpr01cu01001.inbound.protection.outlook.com
- 2a01:111:f403:c942::3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com
- 2a01:111:f403:c942::1 ↩ mail-yt3pr01cu00701.inbound.protection.outlook.com
- 2a01:111:f403:c942::2 ↩ mail-yt3pr01cu00602.inbound.protection.outlook.com
- 2a01:111:f403:c944:: ↩ mail-yqzpr01cu00900.inbound.protection.outlook.com
SOA Record
Raw SOA
ns2.d-zone.ca dns.hollandcollege.com 2024040875 10800 3600 1209600 300
Primary NS (mname)
ns2.d-zone.ca
Admin Email (rname)
dns@hollandcollege.com
Serial
2024040875
Refresh
10800s
Retry
3600s
Expire
1209600s
Minimum TTL
300s
Nameservers (NS)
ns2.d-zone.ca
ns1.d-zone.ca
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:192.223.15.242 include:spf.protection.outlook.com include:a._spf.brightspace.com ip4:208.117.49.214 include:_tuf-spf.touchnet.com +include:outboundmail.blackbaud.net include:amazonses.com include:_spf.mlsend.com ~all
📊 DNS lookups: 7/10
~ Soft fail (~all) — moderate 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: 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
10 records- apple-domain-verification=XFv5EN9BBW2uGorn
- autodesk-domain-verification=hduVcPeHM2XVHSUpVuM8
- twilio-domain-verification=32079e46303e11ff8368733e61d02ef3
- google-site-verification=6ctlxs9hG25eZK2GZAYtcyLhUAcuMHNNQfNDmAOjqvQ
- solarwinds-service0desk-verification=2ba1a054cc91aacd69d362ffbc141c00
- Qgrw8+iMefm8gC4l5M7+65rd97L0I0DH+3caK2RoVU1PVevZwlQ1ZEfQup35UydJmQjHqz0IfYt7HyX5LbomPw==
- UOJ7IsHqVoQHDly/ZscAmXG6GJOwu6jDXlVPVV99i34e3PSuqukVCA3farmJosvj0F5vttoOyS68Ks05+MsDIA==
- SPFv=spf1 ip4:192.223.15.242 include:spf.protection.outlook.com include:a._spf.brightspace.com ip4:208.117.49.214 include:_tuf-spf.touchnet.com +include:outboundmail.blackbaud.net include:amazonses.com include:_spf.mlsend.com ~all
- MS=ms30744256
- 0XYP6LYA2ZWYZQB2MDU9GSEXOKQZY9FZMX67FQ70Q
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