rblt.com

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

Domain Overview

DNS: ⚡ live Checker: ⚡ live
rblt.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-07-27 20:52:15 UTC · ↺ Refresh

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MX Hostnames

  • usb-smtp-inbound-2.mimecast.com
  • usb-smtp-inbound-1.mimecast.com

MX Priorities

  • usb-smtp-inbound-2.mimecast.com: 10
  • usb-smtp-inbound-1.mimecast.com: 10

A / AAAA Records

  • 198.202.211.1 (no PTR)

Mail Server IPs

  • 170.10.150.242 ↩ usb-smtp-delivery-2.mimecast.com
  • 170.10.152.242 ↩ usb-smtp-delivery-2.mimecast.com

SOA Record

Raw SOA ns20.digicertdns.com dns.digicertdns.com 2009010288 43200 3600 1209600 180
Primary NS (mname)
ns20.digicertdns.com
Admin Email (rname)
dns@digicertdns.com
Serial
2009010288
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s

Nameservers (NS)

ns13.dnsmadeeasy.com
ns11.dnsmadeeasy.com
ns12.dnsmadeeasy.com
ns15.dnsmadeeasy.com
ns14.dnsmadeeasy.com
ns10.dnsmadeeasy.com

SPF Record

✓ Strict (-all)
v=spf1 include:usb._netblocks.mimecast.com ip4:38.112.182.0/26 ip4:172.254.21.224/28 include:_spf.google.com include:sendgrid.net include:_spf.bluematrix.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict 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

✓ 1 found
google._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: google

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

All TXT Records

12 records
  • openai-domain-verification=dv-6Wk1A79iG2Uu3j0t0mdKNrIp
  • 550559hlja0vqkbri619ej9ci5
  • ZOOM_verify_rdMo7nrLLKLR8rJpLdd3AL
  • fafcdi2gm9v5qk28ieg9nuoipo
  • 0ed1fe018a1ea8b848f9a240448a66c03631b06643
  • p4bg6omi5n66plm77j09vbbugn
  • ve6rj3cc2urun9i78oknlc4a3t
  • _vpwzgta2e03n7lmrgyh34o4aiivwpsm
  • anthropic-domain-verification-50rd0y=qybMSR9UeMgBYE3qijcYH3HAV
  • perplexity-ai-domain-verification-cbcvv9=hW5CesgHknQqe5eHKweA7QAQa
  • google-site-verification=_4zfaudpAvgPK8tZ1t0VAEmXuKBymSGP6xTsX23aIOo
  • SPFv=spf1 include:usb._netblocks.mimecast.com ip4:38.112.182.0/26 ip4:172.254.21.224/28 include:_spf.google.com include:sendgrid.net include:_spf.bluematrix.com -all
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