Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
altertechnology.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-21 20:29:04 UTC · ↺ Refresh
MX Hostnames
- altertechnology-com.mail.protection.outlook.com
MX Priorities
No priority data.
A / AAAA Records
- 185.99.186.254
Mail Server IPs
No IPs resolved.
SOA Record
No SOA record found.
Nameservers (NS)
dns11.servidoresdns.net
dns12.servidoresdns.net
SPF Record
✓ Strict (-all)
v=spf1 mx include:spf.protection.outlook.com ip4:89.140.21.0/24 ip4:84.124.29.128/29 ip4:62.82.171.36/30 ip4:168.245.46.66 ip4:80.29.127.82/32 ip4:88.2.252.140 ip4:168.245.46.66/24 ip4:185.99.187.212 include:sendgrid.net include:emsd1.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; 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
✓ 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- google-site-verification=nw_1jw0K3XWFVfZcr5Pp6g7bZRqMITlWZ-AwdbSbZ2I
- google-site-verification=sz_3PkTKfB3fiq8actwy4cv9rMoooIwBCK9zdrrcxz0
- 71c2d9c644edd4e4a492b2688df8fdb8
- SPFv=spf1 mx include:spf.protection.outlook.com ip4:89.140.21.0/24 ip4:84.124.29.128/29 ip4:62.82.171.36/30 ip4:168.245.46.66 ip4:80.29.127.82/32 ip4:88.2.252.140 ip4:168.245.46.66/24 ip4:185.99.187.212 include:sendgrid.net include:emsd1.com -all
- MS=ms59072486
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