Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
simkosupport.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 20:12:40 UTC · ↺ Refresh
MX Hostnames
- simkosupport-com.mail.protection.outlook.com
MX Priorities
- simkosupport-com.mail.protection.outlook.com: 0
A / AAAA Records
- 172.67.186.208 (no PTR)
- 104.21.92.54 (no PTR)
- 2606:4700:3031::6815:5c36
- 2606:4700:3035::ac43:bad0
Mail Server IPs
- 52.101.40.24 ↩ mail-cy5pr05cu00100.inbound.protection.outlook.com
- 52.101.50.7 ↩ mail-co1pr21cu00207.inbound.protection.outlook.com
- 52.101.11.15 ↩ mail-sa9pr02cu00207.inbound.protection.outlook.com
- 52.101.9.14 ↩ mail-bl0pr03cu00206.inbound.protection.outlook.com
- 2a01:111:f403:c902::7 ↩ mail-sj0pr02cu00107.inbound.protection.outlook.com
- 2a01:111:f403:c946:: ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c946::4 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
- 2a01:111:f403:f90d::1 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
SOA Record
Raw SOA
armfazh.ns.cloudflare.com dns.cloudflare.com 2399418564 10000 2400 604800 1800
Primary NS (mname)
armfazh.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399418564
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
armfazh.ns.cloudflare.com
carioca.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx ip4:159.183.110.9 ip4:3.17.97.149 include:sendgrid.net include:spf.protection.outlook.com ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- MS=ms27917749
- smartsheet-site-validation=wRufWP02CRQbkiBycWNeuc2CjoK_EIqp
- SPFv=spf1 a mx ip4:159.183.110.9 ip4:3.17.97.149 include:sendgrid.net include:spf.protection.outlook.com ~all
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