rightsize.com

Valid Email Server
Domain Lookup › rightsize.com
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
rightsize.com
Yes
✓ Yes
Symantec
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-06-03 08:58:51 UTC · ↺ Refresh

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MX Hostnames

  • cluster1a.us.messagelabs.com
  • cluster1.us.messagelabs.com

MX Priorities

  • cluster1.us.messagelabs.com: 10
  • cluster1a.us.messagelabs.com: 20

A / AAAA Records

  • 192.124.249.84 ↩ cloudproxy10084.sucuri.net

Mail Server IPs

  • 67.219.250.218 ↩ mail951.messagelabs.com
  • 67.219.247.204 ↩ mail931.messagelabs.com
  • 67.219.250.212 ↩ mail943.messagelabs.com
  • 67.219.250.215 ↩ mail948.messagelabs.com
  • 67.219.247.106 ↩ mail923.messagelabs.com
  • 67.219.246.210 ↩ mail909.messagelabs.com
  • 67.219.246.208 ↩ mail907.messagelabs.com
  • 67.219.247.202 ↩ mail930.messagelabs.com
  • 34.75.172.113 ↩ 113.172.75.34.bc.googleusercontent.com

SOA Record

Raw SOA ns99.worldnic.com namehost.worldnic.com 126030719 10800 3600 604800 3600
Primary NS (mname)
ns99.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126030719
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns100.worldnic.com
ns99.worldnic.com

SPF Record

✓ Strict (-all)
v=spf1 mx a:manila.rightsize.com a:mmail.rightsize.com a:webmail.pieper.com include:spf.messagelabs.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject;rua=mailto:[email protected]; ruf=mailto:[email protected]; adkim=s; aspf=s;fo=0;
✓ Reject — strongest protection
📋 SPF alignment: Strict · DKIM alignment: Strict
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 13 found
google._domainkey
selector1._domainkey
selector2._domainkey
default._domainkey
mail._domainkey
dkim._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
sendgrid._domainkey
mxvault._domainkey
amazonses._domainkey
⚠ Public key (p=) missing in DKIM record for selector google.

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

All TXT Records

8 records
  • _vvsvdfa0ag10u0eufrfm80ll1uskks1
  • google-site-verification=MZC-vH4vO8jhrWrOQKW5vwIq6wSZyRBIUcsonTWcM3A
  • google-site-verification=52cHU-09wsXOU8jdzdQ8vY8ZDnMorT6sNdpm3BMJyYs
  • SPFv=spf1 mx a:manila.rightsize.com a:mmail.rightsize.com a:webmail.pieper.com include:spf.messagelabs.com -all
  • google-site-verification=NCbsSfpRD5Mm5aSlS-iK3bnjsdYnSV_v9AdMdy_DvEU
  • duo_sso_verification=NWDDgNOCAmB8xZuowM351wc8zQ6DdSrjNRfDRtDvtIFc5WeCYRx8oo7ITgApbJsb
  • MS=ms70117795
  • google-site-verification=niDcfkOvAH7CmLz4Q918sdsErku0L-HlkpE0rn_0Rpw
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