Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
simtechinc.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-20 21:12:24 UTC · ↺ Refresh
MX Hostnames
- simtechinc.mail.protection.office365.us
MX Priorities
No priority data.
A / AAAA Records
- 50.116.26.83
Mail Server IPs
No IPs resolved.
SOA Record
No SOA record found.
Nameservers (NS)
ns-1103.awsdns-09.org
ns-1568.awsdns-04.co.uk
ns-391.awsdns-48.com
ns-629.awsdns-14.net
SPF Record
✓ Strict (-all)
v=spf1 mx a a:mx.simtechinc.com a:mail.simtechinc.com ip4:143.59.180.32/28 ip4:24.96.84.48/29 ip4:192.168.150.106 include:transmail.net include:spf.protection.office365.us -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected];
~ 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
default._domainkey
dkim._domainkey
✓ Public key: 392 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
6 records- SPFv=spf1 mx a a:mx.simtechinc.com a:mail.simtechinc.com ip4:143.59.180.32/28 ip4:24.96.84.48/29 ip4:192.168.150.106 include:transmail.net include:spf.protection.office365.us -all
- AYFviig9qVZlTZV37KpQ1+sThmzYxI1Lll2xbColExetLqDM9Fb/2oJfp0h1d6xLn5DcS5OXP1w2RlKyeZkUDg==
- MS=4FCE1722D30E29D7A8C258670E33BE160544E92F
- MS=ms62740608
- apple-domain-verification=4V1hMkYEa7M4SHtu
- logmein-verification-code=c8cebfa2-679a-4221-91f0-896a78e896bb
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