36one.co.za

Valid Email Server
Domain Lookup › 36one.co.za

Domain Overview

DNS: ✓ 19d ago Checker: ✓ 19d ago
36one.co.za
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-05-21 19:14:24 UTC · ↺ Refresh

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MX Hostnames

  • za-smtp-inbound-1.mimecast.co.za
  • za-smtp-inbound-2.mimecast.co.za

MX Priorities

  • za-smtp-inbound-1.mimecast.co.za: 10
  • za-smtp-inbound-2.mimecast.co.za: 10

A / AAAA Records

  • 54.227.243.159 ↩ ec2-54-227-243-159.compute-1.amazonaws.com

Mail Server IPs

  • 41.74.197.210 ↩ za-smtp-inbound-2.mimecast.co.za
  • 41.74.193.201 ↩ za-smtp-inbound-2.mimecast.co.za
  • 41.74.197.201 ↩ za-smtp-inbound-1.mimecast.co.za
  • 41.74.193.210 ↩ za-smtp-inbound-2.mimecast.co.za

SOA Record

Raw SOA ns1.firstnet.co.za support.firstnet.co.za 2026042101 86400 3600 777600 3600
Primary NS (mname)
ns1.firstnet.co.za
Admin Email (rname)
support@firstnet.co.za
Serial
2026042101
Refresh
86400s
Retry
3600s
Expire
777600s
Minimum TTL
3600s

Nameservers (NS)

ns2.firstnet.co.za
ns1.firstnet.co.za

SPF Record

✓ Strict (-all)
v=spf1 include:_s3duo9bfz.sdmarc.net -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 1 found
k1._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: k1

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

All TXT Records

8 records
  • 36one.co.za
  • MS=ms90000213
  • SPFv=spf1 include:_s3duo9bfz.sdmarc.net -all
  • e3up80naghun20um6hf8jvv3qv
  • n3prjtt7e6pt5iu5i6coghso8m
  • p1dmi8dqstogbtnjbig8eeahnk
  • anthropic-domain-verification-87tyyz=GXx0IffDd1NgL1nEUj9Vp4e00
  • n7f5hf5aqmqhhddo9hr4obonbd
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