f1rst.com.br

Valid Email Server
Domain Lookup › f1rst.com.br

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
f1rst.com.br
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-31 05:35:00 UTC · ↺ Refresh

MX Hostnames

  • mx2.santandergroup.c3s2.iphmx.com
  • mx1.santandergroup.c3s2.iphmx.com
  • mx1.hc6154-33.iphmx.com
  • mx2.hc6154-33.iphmx.com
  • mx1.hc5532-55.iphmx.com
  • mx2.hc5532-55.iphmx.com

MX Priorities

  • mx1.hc5532-55.iphmx.com: 50
  • mx2.hc6154-33.iphmx.com: 10
  • mx1.santandergroup.c3s2.iphmx.com: 90
  • mx1.hc6154-33.iphmx.com: 10
  • mx2.hc5532-55.iphmx.com: 50
  • mx2.santandergroup.c3s2.iphmx.com: 90

A / AAAA Records

  • 23.200.88.72
  • 23.200.88.71
  • 2600:141b:1c00:22::1730:e064
  • 2600:141b:1c00:22::1730:e073

Mail Server IPs

  • 216.71.155.75 ↩ esa.hc5532-55.iphmx.com
  • 216.71.150.231 ↩ esa.hc5532-55.iphmx.com
  • 139.138.58.92 ↩ esa.hc6154-33.iphmx.com
  • 139.138.47.55 ↩ esa.hc6154-33.iphmx.com
  • 216.71.157.105 ↩ esa1.santandergroup.c3s2.iphmx.com
  • 216.71.158.121 ↩ esa14.santandergroup.c3s2.iphmx.com
  • 68.232.156.201 ↩ esa10.santandergroup.c3s2.iphmx.com
  • 216.71.158.118 ↩ esa12.santandergroup.c3s2.iphmx.com
  • 68.232.156.198 ↩ esa8.santandergroup.c3s2.iphmx.com
  • 216.71.157.85 ↩ esa17.santandergroup.c3s2.iphmx.com
  • 216.71.157.86
  • 216.71.156.21
  • 216.71.158.156
  • 216.71.158.138
  • 216.71.158.146
  • 216.71.158.145
  • 68.232.159.200
  • 68.232.159.238
  • 216.71.156.27
  • 68.232.159.227
  • 68.232.156.193
  • 68.232.156.182
  • 68.232.159.241
  • 68.232.159.230

SOA Record

Raw SOA ns2.santander.com.br monitoracao.santander.com.br 70 10800 3600 2419200 86400
Primary NS (mname)
ns2.santander.com.br
Admin Email (rname)
monitoracao@santander.com.br
Serial
70
Refresh
10800s
Retry
3600s
Expire
2419200s
Minimum TTL
86400s

Nameservers (NS)

a7-67.akam.net
a10-65.akam.net
a3-67.akam.net
a2-64.akam.net
a1-97.akam.net
a28-65.akam.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; ri=3600; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

23 records
  • kaEMw3NQLxiak/nZK2s9ULoHIYRE1hcacQE6xN9VS5DH2LmMPybc8eAbPqOnNTXqM8ilethdtIX+wi+JFq+Dqw==
  • Dynatrace-site-verification=d04ff62b-815b-4e2b-8a96-91021e1600e5__1bjao2vsk9390q56vr1sssie96
  • ibmid=38099f1a-91be-4cd5-b7cd-d8047207a844
  • MS=ms87085810
  • Dynatrace-site-verification=2ccf6f3b-d6c9-4024-afab-6c519a9f533d__qdnl0dqe370d3r61214jugkgpn
  • Dynatrace-site-verification=d6ee3968-dbbf-490f-8822-d210a397e6b9__7guct6nnpo913ieqal1pq1e7fc
  • atlassian-domain-verification=TFnmCsLwUj4y/ta3Let8OTUy/LAA0o444LEq1oIvcfzM1/BSJ5jdeeKEkTIkTy/x
  • Dynatrace-site-verification=c5aa84b1-922a-4565-b2d0-0f781f926bc3__r072hd77pb0orj2p0lpe3aeah2
  • Dynatrace-site-verification=aa7cb7bc-a8c7-464f-bb52-f5b6c0fb8391__gvg01sbl2324vccdsi5a98qbjg
  • Dynatrace-site-verification=c8ee8cf0-e680-4d9d-a8c1-1fb1e8058dcf__9mvj4oddc7ip0j56m0avisg2a5
  • mongodb-site-verification=lqg95H6icMNHk0yeO7Db5xkGvxrrxcLM
  • miro-verification=33650d7b9155393260462651b5a25d0c9e484793
  • Dynatrace-site-verification=5bf0e31b-2d58-4668-b2c5-c12320ab5be1__5e1dh2obnbdfpl4hb5o4ciuia7
  • atlassian-domain-verification=TaKIMx5wYUQ9qbHydaatoCMugnuRxBXilnOul/aHadARZRVvaVYndRzI1CABayCj
  • Dynatrace-site-verification=a5173ab7-ce14-4f9f-ac12-a3086ef1828d__u64t1amnla74rtn666n949ao53
  • atlassian-domain-verification=tMjCuC0565lJoomyho8otqjiS6wVB08AaMTT1tow02/SEFAdeRrCQDRhXb/THkMZ
  • Dynatrace-site-verification=e21f94f2-b7cf-468a-8389-0863760a1392__ccpv1lsuul344406rt5f1egiev
  • SPFv=spf1 exists:%{i}.spf.us.gruposantander.com exists:%{i}.spf.as.gruposantander.com -all
  • docusign=9c1b2c34-bee6-42e9-bdf5-84bcd83866fd
  • mongodb-site-verification=OVW7BB46ehdUkk7I7xS69lCcmwa2fg2Q
  • airtable-verification=fe167e685bd577f1002e0cfc9fbe020a
  • adobe-idp-site-verification=943233cacd112d22dc95a96c5177dbc452a3557c7479790d2b2b3f939de355e9
  • Dynatrace-site-verification=6ce683a3-fc31-48d7-b86c-a7a39d699a38__hj7m93ctrt492un5491usqid3a
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