optus.com.au

Valid Email Server
Domain Lookup › optus.com.au

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
optus.com.au
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-04-02 11:26:09 UTC · ↺ Refresh

MX Hostnames

  • mx.emea.email.fireeyecloud.com

MX Priorities

  • mx.emea.email.fireeyecloud.com: 20

A / AAAA Records

  • 23.48.247.245 ↩ a23-48-247-245.deploy.static.akamaitechnologies.com
  • 23.48.247.237 ↩ a23-48-247-237.deploy.static.akamaitechnologies.com
  • 23.48.247.234 ↩ a23-48-247-234.deploy.static.akamaitechnologies.com

Mail Server IPs

  • 3.123.5.6 ↩ mx.emea.email.fireeyecloud.com
  • 63.34.218.7 ↩ mx.emea.email.fireeyecloud.com
  • 63.34.218.8 ↩ mx.emea.email.fireeyecloud.com
  • 3.123.5.7 ↩ mx.emea.email.fireeyecloud.com
  • 3.123.5.8 ↩ mx.emea.email.fireeyecloud.com
  • 63.34.218.6 ↩ mx.emea.email.fireeyecloud.com

SOA Record

Raw SOA dns0.optus.net.au hostmaster.optus.net.au 2026040205 28800 7200 1209600 900
Primary NS (mname)
dns0.optus.net.au
Admin Email (rname)
hostmaster@optus.net.au
Serial
2026040205
Refresh
28800s
Retry
7200s
Expire
1209600s
Minimum TTL
900s

Nameservers (NS)

dns1.optus.net.au
a14-67.akam.net
a4-65.akam.net
a5-66.akam.net
a1-84.akam.net
a3-64.akam.net
a8-67.akam.net
dns0.optus.net.au

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:203.13.126.0/24 ip4:203.13.128.0/24 ip4:180.92.216.0/21 ip4:202.160.119.160/28 ip4:199.59.64.200/32 ip4:199.59.64.16/32 ip6:2400:1200:1:123::/64 include:rnmk.com a:mail.optus.com.au include:mktomail.com include:us.khoros-mail.com ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

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

DKIM Selectors

✓ 3 found
selector1._domainkey
selector2._domainkey
default._domainkey
✓ Public key: 216 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

27 records
  • _yg6858xlmi4usqb3k84z4g05mwuqdtg
  • f4659e54-920e-4086-81a7-3628707f44c2
  • pexip-ms-tenant-domain-verification=f5cbebd0-62a3-46b2-8db1-643d52c52ae7
  • /+eAluHscyWk5VrjXCQRrLurLCYao5ymPLTfukEKUuorBmImhvRrIqPhePlZ78/DmgOq4osH9Zl5tb8maATCPA==
  • atlassian-sending-domain-verification=3f8d2c26-d100-4031-99a8-653383d8c9c4
  • dtm-domain-verification=v8NdE1hxbrB7mLz9Mem_ney43CRti1CtSSjEoPpAUZg
  • apple-domain-verification=0gKKyEb406IshYVg
  • apple-domain-verification=PuOKPACfMn3LIXTT
  • sending_domain1077842=7dfa74d580c083a6a3d256432274c76404a7a3ac591c33b1d39549171682e166
  • Y8VzVV6ff5LCyBDqZRpb51XTBYLb/zuvVsh7K5xEURHsth/HLoSucAcmOKbJv2mHKzvptuJCFVnpxBiu9q4DMQ==
  • globalsign-domain-verification=3Fl4Eqj_V08XH5MZb8lPUQ4LiuWJf4kLzrGscuVilP
  • SPFv=spf1 ip4:203.13.126.0/24 ip4:203.13.128.0/24 ip4:180.92.216.0/21 ip4:202.160.119.160/28 ip4:199.59.64.200/32 ip4:199.59.64.16/32 ip6:2400:1200:1:123::/64 include:rnmk.com a:mail.optus.com.au include:mktomail.com include:us.khoros-mail.com ~all
  • pardot1077842=edf4a4760d9f0d88df6b4c242a005bb4d624ddf0f4862192ab91aec5675cac29
  • adobe-idp-site-verification=1f5bc1bcc6d81dc920d7cfa1b6b0746f3bfc1791eecde28f8354fbf19f0b220b
  • cisco-ci-domain-verification=15cffa8ee9d48bb47de880e9f600ed2b7c2ed9e0a84535f2c13c63fe1707e5a1
  • atlassian-domain-verification=FGOoU/HQWOl0905rJFiJEMfZpo0RTbIE/cAilYblHrbbWGIw4ykpdhXUWtaW569d
  • docusign=67cb8160-a48b-4641-83d6-79b5cb5f2ec9
  • facebook-domain-verification=ufmzsowij7slfq2fatz3c06pen8pth
  • fb18c31c-55bd-4ec0-99c5-1fc45a9c313f
  • dropbox-domain-verification=6mfam9ambrdi
  • _globalsign-domain-verification=B57sRQpmte4G4w-gavZbVNmmNsMxGp5kcL19UP2599
  • postman-domain-verification=ed1601ffd79b7be1e796ea898132ef5ee4da3475b22e5f1425714ef1c38aec3548da2ed9b9904727a3c842904bc1e0b92050ddb575a9aa03e5139aeb86bf965d
  • gitpod-verification=uKMDK47M_3cCVgd2dNZ0dE2TPUjTwi-S9Ng_p96v_vY=
  • cloudhealth=c3da2ca8-0122-4b64-ac1f-c1b2a4f435f4
  • google-site-verification=S584BWdavsbV_FTq8WYdEyWGIvebjuVwGDcdndfjlxs
  • google-site-verification=JvR2FQevqr2bS9WNyEJlSwFzyWwbds7kIqAbQP6TGT0
  • _psrje97hbu6jpk63b8a2zva4eshpnxi
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