Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
semmax.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-14 02:40:32 UTC · ↺ Refresh
MX Hostnames
- mail1.redtailtechnology.com
MX Priorities
- mail1.redtailtechnology.com: 1
A / AAAA Records
- 216.150.1.1 (no PTR)
Mail Server IPs
- 4.17.237.44 (no PTR)
SOA Record
Raw SOA
ns10.dnsmadeeasy.com dns.dnsmadeeasy.com 2009010161 43200 3600 1209600 180
Primary NS (mname)
ns10.dnsmadeeasy.com
Admin Email (rname)
dns@dnsmadeeasy.com
Serial
2009010161
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s
Nameservers (NS)
ns6.advisorstech.net
ns1.advisorstech.net
ns2.advisorstech.net
ns5.advisorstech.net
ns4.advisorstech.net
ns3.advisorstech.net
SPF Record
✓ Soft Fail (~all)
v=spf1 include:emg.serverdata.net include:spf.redtailtechnology.com include:spf.mandrillapp.com include:spf.usa.net include:amazonses.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
mail._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- brevo-code:5d14d64dbab012da56f309284ff3f71a
- SPFv=spf1 include:emg.serverdata.net include:spf.redtailtechnology.com include:spf.mandrillapp.com include:spf.usa.net include:amazonses.com ~all
- facebook-domain-verification=0wvemhhd3b7xs07cqwkz8liignpfiu
- brevo-code:5d14d64dbab012da56f309284ff3f71a.
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