Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
returncapital.com.br
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-02 13:24:35 UTC · ↺ Refresh
MX Hostnames
- mx1.hc5532-55.iphmx.com
- mx2.hc6154-33.iphmx.com
- mx2.santandergroup.c3s2.iphmx.com
- mx1.santandergroup.c3s2.iphmx.com
- mx1.hc6154-33.iphmx.com
- mx2.hc5532-55.iphmx.com
MX Priorities
- mx1.santandergroup.c3s2.iphmx.com: 90
- mx2.santandergroup.c3s2.iphmx.com: 90
- mx1.hc6154-33.iphmx.com: 10
- mx2.hc6154-33.iphmx.com: 10
- mx1.hc5532-55.iphmx.com: 50
- mx2.hc5532-55.iphmx.com: 50
A / AAAA Records
- 45.223.160.248
- 45.223.180.248
Mail Server IPs
- 216.71.157.86 ↩ esa19.santandergroup.c3s2.iphmx.com
- 68.232.159.230 ↩ esa7.santandergroup.c3s2.iphmx.com
- 216.71.158.121 ↩ esa14.santandergroup.c3s2.iphmx.com
- 68.232.156.201 ↩ esa10.santandergroup.c3s2.iphmx.com
- 68.232.159.227 ↩ esa5.santandergroup.c3s2.iphmx.com
- 216.71.158.118 ↩ esa12.santandergroup.c3s2.iphmx.com
- 216.71.157.85 ↩ esa17.santandergroup.c3s2.iphmx.com
- 216.71.158.156 ↩ esa2.santandergroup.c3s2.iphmx.com
- 216.71.156.27 ↩ esa15.santandergroup.c3s2.iphmx.com
- 68.232.156.198 ↩ esa8.santandergroup.c3s2.iphmx.com
- 216.71.158.138
- 68.232.156.193
- 216.71.156.21
- 68.232.159.200
- 216.71.158.146
- 216.71.158.145
- 68.232.156.182
- 68.232.159.241
- 216.71.157.105
- 68.232.159.238
- 139.138.47.55
- 139.138.58.92
- 216.71.155.75
- 216.71.150.231
SOA Record
Raw SOA
ns-1825.awsdns-36.co.uk awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1825.awsdns-36.co.uk
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1066.awsdns-05.org
ns-1825.awsdns-36.co.uk
ns-341.awsdns-42.com
ns-1003.awsdns-61.net
SPF Record
✗ Invalid
v=spf1 exists:%{i}.spf.us.gruposantander.com exists:%{i}.spf.as.gruposantander.com -all
📊 DNS lookups: 2/10
⚠ Strict -all with no allowed senders — no servers can send email for this domain.
DMARC Record
✓ Reject
v=DMARC1; p=reject; fo=1; pct=100; ri=3600; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 13 found
google._domainkey
selector1._domainkey
selector2._domainkey
default._domainkey
mail._domainkey
dkim._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
sendgrid._domainkey
mxvault._domainkey
amazonses._domainkey
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- docusign=1889aff0-faa7-429e-9031-531297efa2a8
- SPFv=spf1 exists:%{i}.spf.us.gruposantander.com exists:%{i}.spf.as.gruposantander.com -all
Full email verification for returncapital.com.br
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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