Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
serfinansa.com.co
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-05-21 06:36:01 UTC · ↺ Refresh
MX Hostnames
- serfinansa-com-co.mail.protection.outlook.com
MX Priorities
- serfinansa-com-co.mail.protection.outlook.com: 0
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
- 52.101.194.3 ↩ mail-ch1pr04cu00103.inbound.protection.outlook.com
- 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
- 52.101.9.5 ↩ mail-mn2pr04cu00205.inbound.protection.outlook.com
- 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c901::1 ↩ mail-bl2pr04cu00201.inbound.protection.outlook.com
- 2a01:111:f403:c946::6 ↩ mail-ch5pr02cu00406.inbound.protection.outlook.com
- 2a01:111:f403:f802:: ↩ mail-byapr05cu00400.inbound.protection.outlook.com
SOA Record
Raw SOA
almena.bancoserfinanza.local hostmaster.bancoserfinanza.local 47 900 600 86400 3600
Primary NS (mname)
almena.bancoserfinanza.local
Admin Email (rname)
hostmaster@bancoserfinanza.local
Serial
47
Refresh
900s
Retry
600s
Expire
86400s
Minimum TTL
3600s
Nameservers (NS)
almena.bancoserfinanza.local
cercopes.bancoserfinanza.local
SPF Record
✓ Strict (-all)
v=spf1 ip4:200.30.94.231 include:spf.masterbase.com include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;pct=100;fo=1;ri=86400;rua=mailto:[email protected];ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✗ None detectedNo 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
7 records- _lf5otu90klbqux8q8ungy302djdy5cc
- SPFv=spf1 ip4:200.30.94.231 include:spf.masterbase.com include:spf.protection.outlook.com -all
- DKIMv=DKIM1;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC7ihaZq2m4DEPm0YRxP96pRNpshQHHrdmOT2jyH3wqa4JL961DAtGh/FcvpwAI5K7VdOF5D7XKWP1EbqAz10Xg11piMgYYQeJwYrTMvBrr8mFJlnTesXilcwHeG6gclZqQtSDaTa2l22qeXN2ANNUxFPnJUp0BBHZ/ATSuqK3tZQIDAQAB;
- _pmtxl1kvfl26cawp5as6nqzormynsd5
- lcqjrejgiau5ni8l9mrtvau5sb
- 1tntzhp2tb5hncsvprqtldf0c111cy2g
- pmhp2fg5mm3h9w57x225yfy49k9y9q42
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site · Customize →
See demo & docs
Deep verification
Full email verification for serfinansa.com.co
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits