Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
osptky.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 21:19:21 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-1.mimecast.com
- us-smtp-inbound-2.mimecast.com
MX Priorities
- us-smtp-inbound-2.mimecast.com: 15
- us-smtp-inbound-1.mimecast.com: 10
A / AAAA Records
- 141.193.213.20 (no PTR)
- 141.193.213.21 (no PTR)
Mail Server IPs
- 170.10.132.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-2.mimecast.com
SOA Record
Raw SOA
amit.ns.cloudflare.com dns.cloudflare.com 2399463861 10000 2400 604800 1800
Primary NS (mname)
amit.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399463861
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
dawn.ns.cloudflare.com
amit.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:168.215.90.186/27 include:spf.protection.outlook.com include:us._netblocks.mimecast.com include:emsd1.com include:_spf.ultipro.com include:_spf.psm.knowbe4.com include:amazonses.com -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
✓ Reject — strongest protection
📋 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
9 records- google-site-verification=Yo2RUK9r7q4Ig_A5BsMmqZ24-fADyQjhFYqqay-WTsY
- knowbe4-site-verification=de22f811bbfcc1ce139ee4c48c2de7ad
- SPFv=spf1 ip4:168.215.90.186/27 include:spf.protection.outlook.com include:us._netblocks.mimecast.com include:emsd1.com include:_spf.ultipro.com include:_spf.psm.knowbe4.com include:amazonses.com -all
- v=verifydomain MS=5180700
- ZOOM_verify_T-BONsRVSuKB8tlrXdEwVg
- docusign=32775b61-f951-4a64-9ee2-6634a2b203a4
- dropbox-domain-verification=n91l1faka22p
- facebook-domain-verification=664edb7oap23us0gwqg80qxp5d4djf
- google-site-verification=BYTl1hL74RtHzppT5uD1tPnoe6BsiyZjy-kKHMY1Jtg
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