Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ast-science.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 05:38:12 UTC · ↺ Refresh
MX Hostnames
- astscience-com0i.mail.protection.outlook.com
MX Priorities
- astscience-com0i.mail.protection.outlook.com: 0
A / AAAA Records
- 52.1.69.99 ↩ ec2-52-1-69-99.compute-1.amazonaws.com
Mail Server IPs
- 52.101.11.15 ↩ mail-sa9pr02cu00207.inbound.protection.outlook.com
- 52.101.10.18 ↩ mail-bn8pr05cu00302.inbound.protection.outlook.com
- 52.101.9.5 ↩ mail-mn2pr04cu00205.inbound.protection.outlook.com
- 52.101.41.58 ↩ mail-sj0pr02cu00102.inbound.protection.outlook.com
- 2a01:111:f403:f802::1 ↩ mail-sj2pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f905::3 ↩ mail-dm5pr02cu00203.inbound.protection.outlook.com
- 2a01:111:f403:f90c:: ↩ mail-sn1pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c903::3 ↩ mail-mw2pr02cu00503.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-1483.awsdns-57.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1483.awsdns-57.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-765.awsdns-31.net
ns-1483.awsdns-57.org
ns-1698.awsdns-20.co.uk
ns-5.awsdns-00.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:63.125.140.246 ip4:12.10.194.90 ip4:213.8.185.98 ip4:202.65.147.58 include:spf.protection.outlook.com include:amazonses.com include:sent-via.netsuite.com include:mg-spf.greenhouse.io include:_spf.salesforce.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected]; adkim=r; aspf=r; pct=100; rf=afrf; sp=none
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
k1._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
11 records- 1password-site-verification=UMYERP35JNEANODUUFHMF4XVZM
- BlueXP558f90f8-5d4c-4e54-ab4e-ece55702e10b
- MS=ms95755528
- anthropic-domain-verification-teqdbj=fZuTF8y5PAnyGec186pRmWFJf
- apple-domain-verification=hFUD9LQb9S6pl0Xq
- atlassian-domain-verification=+DfI6hhjbvz+HCzXYcTopv9Z0zQbZCrZzCo/FAASUbRI3xsbVJf0fRjaMhoII0zd
- docker-verification=a6390c9d-5c09-4a68-86d3-4befed5f10d8
- google-site-verification=MZyM2eHLwn9j0HJCnLV5LGsgrO7mEg5K5S0KjucCxAc
- smartsheet-site-validation=lvv87UHNg3E2bC-VuX9QHliP0S3ztGjG
- SPFv=spf1 ip4:63.125.140.246 ip4:12.10.194.90 ip4:213.8.185.98 ip4:202.65.147.58 include:spf.protection.outlook.com include:amazonses.com include:sent-via.netsuite.com include:mg-spf.greenhouse.io include:_spf.salesforce.com -all
- wrike-verification=Njk0MTc1ODowMmJlYzM5OTNlMzY3NDQ3YTQ4ZTkzYmU1NjMyN2NiOGM1ZWVhZWViNjE2MjM2NDBkNmYyMTliM2NhMGZjZmIx
Full email verification for ast-science.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits