Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
aster.com.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-29 03:24:31 UTC · ↺ Refresh
MX Hostnames
- aster-com-br.mail.protection.outlook.com
MX Priorities
- aster-com-br.mail.protection.outlook.com: 0
A / AAAA Records
- 172.67.217.55 (no PTR)
- 104.21.78.59 (no PTR)
- 2606:4700:3034::6815:4e3b
- 2606:4700:3033::ac43:d937
Mail Server IPs
- 52.101.41.58 ↩ mail-sj0pr02cu00102.inbound.protection.outlook.com
- 52.101.11.19 ↩ mail-sa9pr04cu00203.inbound.protection.outlook.com
- 52.101.9.2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
- 52.101.41.6 ↩ mail-sj0pr03cu01406.inbound.protection.outlook.com
- 2a01:111:f403:f912:: ↩ mail-cy5pr03cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c946:: ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c91d::a ↩ mail-co1pr21cu00202.inbound.protection.outlook.com
- 2a01:111:f403:c902::2 ↩ mail-sj0pr03cu01602.inbound.protection.outlook.com
SOA Record
Raw SOA
john.ns.cloudflare.com dns.cloudflare.com 2400118474 10000 2400 604800 1800
Primary NS (mname)
john.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400118474
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
john.ns.cloudflare.com
nadia.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:sendgrid.net include:cust-spf.exacttarget.com include:amazonses.com include:_spf.salesforce.com include:spf.skymail.net.br ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; adkim=s; aspf=s;
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
5 records- MS=ms72396698
- facebook-domain-verification=e7cigewf67l7liuifnup8ychc04tid
- google-site-verification=NJfroVlN10D8_rcbNYDJXmG2mwLuG5kRT-mkVVROln4
- SPFv=spf1 include:spf.protection.outlook.com include:sendgrid.net include:cust-spf.exacttarget.com include:amazonses.com include:_spf.salesforce.com include:spf.skymail.net.br ~all
- MS=5437B2785D77B6D228624EC0B664CC1D31A14D95
Full email verification for aster.com.br
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits