rstrents.com

Valid Email Server

Domain Overview

DNS: โœ“ 2mo ago Checker: โœ“ 2mo ago
rstrents.com
Yes
โœ“ Yes
Outlook
No
No
โš  Yes
No
No

Checked via [email protected] ยท 2026-03-19 17:46:00 UTC ยท โ†บ Refresh

MX Hostnames

  • rstrents-com.mail.protection.outlook.com

MX Priorities

  • rstrents-com.mail.protection.outlook.com: 5

A / AAAA Records

  • 108.175.11.135 (no PTR)

Mail Server IPs

  • 52.101.41.22 โ†ฉ mail-sj2pr05cu00406.inbound.protection.outlook.com
  • 52.101.8.42 โ†ฉ mail-dm6pr03cu00402.inbound.protection.outlook.com
  • 52.101.194.13 โ†ฉ mail-ch0pr04cu00605.inbound.protection.outlook.com
  • 52.101.194.3 โ†ฉ mail-ch1pr04cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:c922::2 โ†ฉ mail-bl0pr02cu00702.inbound.protection.outlook.com
  • 2a01:111:f403:c92c::4 โ†ฉ mail-dm6pr05cu00404.inbound.protection.outlook.com
  • 2a01:111:f403:c931::1 โ†ฉ mail-sa9pr03cu00201.inbound.protection.outlook.com
  • 2a01:111:f403:f802::2 โ†ฉ mail-sj2pr05cu00202.inbound.protection.outlook.com

SOA Record

Raw SOA ns51.domaincontrol.com dns.jomax.net 2025091707 28800 7200 604800 600
Primary NS (mname)
ns51.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2025091707
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns52.domaincontrol.com
ns51.domaincontrol.com

SPF Record

โœ“ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:asp-spf1.yardi.com include:asp-spf2.yardi.com -all
๐Ÿ“Š DNS lookups: 3/10
โœ“ Hard fail (-all) โ€” strict enforcement

DMARC Record

โœ“ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]
โœ“ Reject โ€” strongest protection
๐Ÿ“‹ SPF alignment: Relaxed ยท DKIM alignment: Relaxed
๐Ÿ“ง Reports โ†’ mailto:[email protected]

DKIM Selectors

โœ“ 2 found
selector1._domainkey
selector2._domainkey
โœ“ Public key: 216 chars (valid)
โœ“ DKIM properly configured for selector: selector1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

2 records
  • SPFv=spf1 include:spf.protection.outlook.com include:asp-spf1.yardi.com include:asp-spf2.yardi.com -all
  • google-site-verification=cGrM25XOHpl4uTIFc6FhdlaYBAjJXVlONB4tbit9fTo
Free ยท No signup required
Add email validation to your forms

Block disposable emails, validate MX records, detect role accounts โ€” unlimited, forever free.

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

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

No credit card required
Get 1,000 Free Credits