Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sisttemex.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 23:31:12 UTC · ↺ Refresh
MX Hostnames
- sisttemex-com.mail.protection.outlook.com
MX Priorities
- sisttemex-com.mail.protection.outlook.com: 0
A / AAAA Records
- 64.29.145.9 ↩ hostedc25.carrierzone.com
Mail Server IPs
- 40.93.192.1 ↩ mail-dm5pr02cu00201.inbound.protection.outlook.com
- 52.101.10.1 ↩ mail-bn6pr02cu00301.inbound.protection.outlook.com
- 52.101.41.22 ↩ mail-sj2pr05cu00406.inbound.protection.outlook.com
- 52.101.41.56 ↩ mail-sj0pr21cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c931::1 ↩ mail-sa9pr03cu00201.inbound.protection.outlook.com
- 2a01:111:f403:f90c:: ↩ mail-sn1pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f90d::1 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c801::1 ↩ mail-sn1pr0501cu00101.inbound.protection.outlook.com
SOA Record
Raw SOA
dns.alestra.net.mx soporteip.axtel.com.mx 762215074 10800 3600 1209600 3600
Primary NS (mname)
dns.alestra.net.mx
Admin Email (rname)
soporteip@axtel.com.mx
Serial
762215074
Refresh
10800s
Retry
3600s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
dns.alestra.net.mx
mail2.alestra.net.mx
mail1.alestra.net.mx
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:turbo-smtp.com include:spf.smtp2go.com include:46501938.spf02.hubspotemail.net -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
2 records- SPFv=spf1 include:spf.protection.outlook.com include:turbo-smtp.com include:spf.smtp2go.com include:46501938.spf02.hubspotemail.net -all
- MS=ms46195313
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