otsi-usa.com

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
otsi-usa.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-28 15:21:54 UTC · ↺ Refresh

MX Hostnames

  • webmail.otsi-usa.com
  • weboutlook.otsi-usa.com
  • otsi-usa-com-2.fortimailcloud.com
  • otsi-usa-com-1.fortimailcloud.com
  • otsiusa-com01b.mail.protection.outlook.com

MX Priorities

  • otsiusa-com01b.mail.protection.outlook.com: 20
  • otsi-usa-com-1.fortimailcloud.com: 5
  • otsi-usa-com-2.fortimailcloud.com: 10
  • weboutlook.otsi-usa.com: 40
  • webmail.otsi-usa.com: 80

A / AAAA Records

  • 209.17.116.163 (no PTR)

Mail Server IPs

  • 52.101.145.2 ↩ mail-pnypr01cu00202.inbound.protection.outlook.com
  • 52.101.145.0 ↩ mail-pnzpr01cu00200.inbound.protection.outlook.com
  • 52.101.144.3 ↩ mail-ma0pr01cu01103.inbound.protection.outlook.com
  • 52.101.144.0 ↩ mail-ma0pr01cu01000.inbound.protection.outlook.com
  • 154.52.16.132 ↩ proxysg33.fortimailcloud.com
  • 38.21.201.132 ↩ proxybga40.fortimailcloud.com
  • 182.73.224.146 ↩ weboutlook.otsi-usa.com

SOA Record

Raw SOA ns13.worldnic.com namehost.worldnic.com 126030605 10800 3600 604800 3600
Primary NS (mname)
ns13.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126030605
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns13.worldnic.com
ns14.worldnic.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:zcsend.net ip4:182.73.224.146 include:_spf.fortimailcloud.com ~all
📊 DNS lookups: 3/10
~ 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

14 records
  • 3uavu020khf6to38hsv24gcdd9
  • cg6pg0oh1mlr11rsih23h3e8u6
  • MS=ms90081940
  • oeb95h05l38pbvl5h5j02kd9d7
  • k2fkrvd7irjujvf8f1c0rbtmeq
  • SPFv=spf1 include:spf.protection.outlook.com include:zcsend.net ip4:182.73.224.146 include:_spf.fortimailcloud.com ~all
  • MS=ms50330732
  • nWZgHF15/9bUJQJiGvuEkSEK9Lcr3zJSYaEqVK1zKG4CZV+tdvE+owdR45iOGn5tNbqWgHzUr0FHGRTocoTyeA==
  • ms-domain-verification=9c9fd1a8-c608-44e6-892e-6e1228dbb17c
  • kt5pgllhuj44rn1fsq9tejspln
  • t2ltp5k12al86hdth2lnkte2br
  • OC2JZUR1T8ITM74IARU49XMWPKMJTDSJ7SV4577O
  • MS=0EAD54F81E6B0D78972CFF34C470F47899FEC27F
  • 3ea0ko85bui2ngbrq7ao3qg9j8
Free · No signup required
Add email validation to your forms

Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.

<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for otsi-usa.com

SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.

No credit card required
Get 1,000 Free Credits