Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
curtis.edu
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 23:37:38 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-2.mimecast.com
- us-smtp-inbound-1.mimecast.com
MX Priorities
- us-smtp-inbound-1.mimecast.com: 10
- us-smtp-inbound-2.mimecast.com: 10
A / AAAA Records
- 23.185.0.3 (no PTR)
- 2620:12a:8000::3 (no PTR)
- 2620:12a:8001::3 (no PTR)
Mail Server IPs
- 170.10.132.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-1.mimecast.com
SOA Record
Raw SOA
damon.ns.cloudflare.com dns.cloudflare.com 2398731689 10000 2400 604800 1800
Primary NS (mname)
damon.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398731689
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
damon.ns.cloudflare.com
journey.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:38.101.84.96/28 ip4:216.17.113.65/32 include:us._netblocks.mimecast.com include:spf.protection.outlook.com include:spf.us.exclaimer.net include:_spf.salesforce.com include:outboundmail.blackbaud.net -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]; adkim=s; aspf=s;
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 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
8 records- google-site-verification=HKFk2V2t6QKZByQi1KPEqrzSL55Bdeiyef0kvY8oE0k
- k6rbbehvm02b53ivljokqvkv6q
- sadh4kavun0nb7ub692vrdpulj
- SPFv=spf1 ip4:38.101.84.96/28 ip4:216.17.113.65/32 include:us._netblocks.mimecast.com include:spf.protection.outlook.com include:spf.us.exclaimer.net include:_spf.salesforce.com include:outboundmail.blackbaud.net -all
- 8l4fhbv2iqhq5uh9jam3k950if
- apple-domain-verification=uj852D3wKOCnr4zB
- docusign=50c6cd67-db36-45f1-be6f-a28a4d9d10dc
- facebook-domain-verification=ocutgkxhg59v25oko0jr1m7b3au7hi
Full email verification for curtis.edu
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