sydney.edu.au

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago

Domain

sydney.edu.au

Valid Email Server

Yes

Has MX Records

✓ Yes

Email Provider

Mimecast

Disposable

Free Provider

Role Account

⚠ Yes

Email Relay

Privacy Protected

Did you mean: [email protected]

Checked via [email protected] · 2026-03-18 01:06:05 UTC · ↺ Refresh

MX Hostnames

au-smtp-inbound-2.mimecast.com
au-smtp-inbound-1.mimecast.com

MX Priorities

au-smtp-inbound-2.mimecast.com: 10
au-smtp-inbound-1.mimecast.com: 10

A / AAAA Records

20.248.131.216 (no PTR)

Mail Server IPs

103.96.22.26 ↩ au-smtp-inbound-1.mimecast.com
103.96.20.26 ↩ au-smtp-inbound-2.mimecast.com

SOA Record

                  Raw SOA
                  dns-dhcp-s01-1e.gw.usyd.edu.au domain-admin.sydney.edu.au 2021275556 900 3600 2419200 15                

Primary NS (mname)

dns-dhcp-s01-1e.gw.usyd.edu.au

Admin Email (rname)

domain-admin@sydney.edu.au

Serial

2021275556

Refresh

900s

Retry

3600s

Expire

2419200s

Minimum TTL

15s

Nameservers (NS)

                      ns2.aarnet.net.au                    

                      dns-2.sydney.edu.au                    

                      ns3.aarnet.net.au                    

                      metro.ucc.usyd.edu.au                    

                      ns1.aarnet.net.au                    

                      dns-1.sydney.edu.au                    

                      extro.ucc.usyd.edu.au                    

SPF Record

✓ Soft Fail (~all)

                    v=spf1 include:_spf.sydney.edu.au ~all                  

📊 DNS lookups: 1/10

~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine

                    v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; pct=100;                  

~ Quarantine — good protection (failing mail goes to spam)

📋 SPF alignment: Relaxed · DKIM alignment: Relaxed

📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 5 found

                      selector1._domainkey
                    

                      selector2._domainkey
                    

                      k1._domainkey
                    

                      s1._domainkey
                    

                      s2._domainkey
                    

✓ Public key: 392 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

70 records

SPFv=spf1 include:_spf.sydney.edu.au ~all
nintex.63f708c12b0accd8a496609b
amazonses:mIamgsPYPVU/34/Lrfwy/WLYA/VlCixDhn1Sdb7KkBE=
e2ma-verification=iscfb
s4bkyfsp6w4mcx530tvcpbfhltt4bx00
yahoo-verification-key=Pif2j4R7X7/EbViZCdVhSHNF8xhzVvpNLB4UG7KJGSo=
docusign=6487858d-6c33-4054-abaf-e9a01f4b0566
jamf-site-verification=--OCitRe8Q-a9UgDpIrMww
MS=ms89223713
QuoVadis=fa5b5130-6845-44e9-aff9-d7d99cb7a4f1
airtable-verification=ddd52671125efc96384ba43a34fe9402
e2ma-verification=9rcfb
amazonses:okfWT3Xs2O0RL4w5zAFE2/5Y/amLFW2S0Q2WRr0EBZM=
_24a90e68cc0376a40a32a0608e2e37ce.clfdpbhzfx.acm-validations.aws
google-site-verification=mBFR3nSZc-mNBuDJjrabhy6dEmog0mLND-s6blBvFLs
e2ma-verification=kscfb
ZdLRPox5Fl8uzaQJrqD+xnW3ApEcmoI5wr4AKceZFsZc5jdfyC+nvzvmGx0X30zlPvyMFiilOWnsNbgXmCMp9w==
QuoVadis=ee681c3f-5dd4-4a2a-9e91-e33ba2ee00ea
nL1YGBE58SPJ9BnsT2FL+3WqWINEYsE9z1iBuYCihLQkLjyFp3jrykKjEheWEmn43xAouO+ZwB1CbZvPOiBzng==
facebook-domain-verification=32c564rzfgvrah7wzwcoibubraeot6
ciscocidomainverification=278689c072ef190e9129e2e709636e5b223c9e296a2e24dfeedf75f3d4eb037
4814f5c2-4b01-49dd-80fd-45e87da457fb
citrix-verification-code=a8682ca7-9646-4d17-a59d-76faabb835d0
google-site-verification=t8XhIElhYS1VilFi-fm6tcageUbT84cPgOeoUCAJ-Sk
e2ma-verification=oscfb
amazonses:BTNxwR8h4UeAMKfc+VEBDivrhfzORCB5P1p1HmZ5oTU=
adobe-idp-site-verification=4814f5c2-4b01-49dd-80fd-45e87da457fb
YYx4FxZODmXL3P1ZqBNLQJETUrvLkiuZU7gT/uUki0gUkqH9Lz82xNYTbjDknX0/tEKMYEYs1IwAHBgi2ehtog==
amazonses:ChrplsGUVAqan8552cP6215E8gNwzGuDGbOFNWHIrjE=
vsaofpp9lvcu7u0ti8dhe3a2l9
e2ma-verification=pscfb
QuoVadis=5a3b6018-93a4-4966-8462-13d06f45f42f
google-site-verification=8UOgyig6x0H2rrZTw6Bp_4GNJs-esfFUXTPp7kisANI
6q93g2p0uuvipc0ncuosi1fj24
e2ma-verification=fscfb
asv=3478f94d4f1fbadde215a32336b676e6
mongodb-site-verification=EU0Jyfgl6f7i8ZZTbINYsqpyFvpoFKBw
docusign=a7695cc6-4623-4316-a706-23657325ab53
eij-0319-test
ca3-59ef25b7f7f44bf682b8a6b2a67d1a51
google-site-verification=I_5Hy61RaPonBzkSeWdSb_JEe1d4b0bMCMlxMqV7z3Y
ssttkk0il045roqnfri4h5p1cd
e2ma-verification=rbcfb
dropbox-domain-verification=fpeciymg53f9
amazonses:0IHZN5vInjtbsdYax6yOIw4vvZqteDUpjqDSqdGzj1I=
mentimeter-1ed19cb5-7890-4670-937f-e09c26cdda36
eij-0214-test
QuoVadis=161ea971-9267-43e2-b404-0814be78ba3b
google-site-verification=FicMLRy30eyM2MMmnBgnMozHQtXFS78YgnKHpGCcTVE
have-i-been-pwned-verification=df7b52bdd2ef2607b6a4ba014d02fa2a
e2ma-verification=jscfb
4b18c512-a528-417b-9ed8-f9dcbf93d40f
google-site-verification=R5yrufEZdwakxSWm863bc6-mK89b7HpKqL6VVtN5QYQ
e2ma-verification=dscfb
e2ma-verification=60hgb
cisco-ci-domain-verification=3f4eb4ec39f2a890637ec0eaa088116d62e8dad1e19c1fb5b1e0ed079659a5f6
e2ma-verification=gscfb
QuoVadis=e7fef189-9355-4909-a4e3-cca4ea292354
QuoVadis=99de6fd1-b376-435b-b51b-ceb13b1e79b3
_w1z93wubobd866xmkf8pbfew8c3h64g
globalsign-domain-verification=A11A6E6AD624A5772D31F13C0F8EE7BD
amazonses:4Mcub/ZnYyMGqXpTFdlNb9X1mb01p++6wiRSDcGnyJs=
MS=ms64200608
ca3-357762f6fc254ec18e9935e1fae1454b
google-site-verification=8VHZg8qX31yvqTi7pd19BLZ0Nrt2661QtYNSKtGhcOM
e2ma-verification=chcfb
70hghq0pkk24h30qq7nbcnmjht2g6g4l
e2ma-verification=mscfb
e2ma-verification=jscfb2
_1nuc6y3gmbehw3t0zhs74n4imdrraqi

Free · No signup required

Add email validation to your forms

Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.

One line of code · Works on any site

See demo & docs

Deep verification

Full email verification for sydney.edu.au

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

No credit card required

Get 1,000 Free Credits