Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
smsholdings.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-17 18:11:03 UTC · ↺ Refresh
MX Hostnames
- mx1-us.emailsecurity.app
- mx2-us.emailsecurity.app
MX Priorities
- mx2-us.emailsecurity.app: 20
- mx1-us.emailsecurity.app: 10
A / AAAA Records
- 66.33.200.248 ↩ ds14863.dreamservers.com
Mail Server IPs
- 172.212.4.33 ↩ mx1-us.emailsecurity.app
- 40.121.188.167 ↩ mx1-us.emailsecurity.app
SOA Record
Raw SOA
ns10.digicertdns.com dns.digicertdns.com 2009010109 43200 3600 1209600 180
Primary NS (mname)
ns10.digicertdns.com
Admin Email (rname)
dns@digicertdns.com
Serial
2009010109
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s
Nameservers (NS)
ns1.dnsmadeeasy.com
ns0.dnsmadeeasy.com
ns2.dnsmadeeasy.com
ns3.dnsmadeeasy.com
ns4.dnsmadeeasy.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:199.167.224.0/22 a mx ip4:4.59.203.64/27 include:spf.protection.outlook.com ip4:173.162.18.177/28 include:edgepilot.com include:_spf.salesforce.com include:spf1.emailsecurity.app -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict 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
✓ 2 found
selector1._domainkey
selector2._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
10 records- sending_domain200162=dbf755df2e23daccad78f4a591e8c543274f7d6cbda34df01d44ba8e0e5fd3e8
- SPFv=spf1 ip4:199.167.224.0/22 a mx ip4:4.59.203.64/27 include:spf.protection.outlook.com ip4:173.162.18.177/28 include:edgepilot.com include:_spf.salesforce.com include:spf1.emailsecurity.app -all
- Txt: Account Engagement emails pass SPF automatically, but we recommend setting it up as a best practice
- pardot_200162_*=bcde2291374f2ba47824d597f3180cfd37173fb2fe1f6793d15178ed3fde5e59
- atlassian-sending-domain-verification=051305eb-6831-4bae-a4c8-803391e67752
- EnFaq75asQv0Lpa60jRbOSAX1NISsmMUcCw4kv6P1/2ffPoivXcTVsi079cY/Q3uN999WrGW9oQ5OKbFYliyTw==
- skfm5fejsur8oblmdr4g4oh7lb
- 9UNZWWVL1WK49MIV0QD3LNBSER5NZ64C7KUWCZU0
- MS=ms60495917
- o1quob3s7r0dmcvlvdnagap7g
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