Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rtdservices.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-30 15:45:22 UTC · ↺ Refresh
MX Hostnames
- rtdservices-com.mail.protection.outlook.com
MX Priorities
- rtdservices-com.mail.protection.outlook.com: 0
A / AAAA Records
- 104.21.91.45 (no PTR)
- 172.67.210.51 (no PTR)
- 2606:4700:3036::ac43:d233
- 2606:4700:3030::6815:5b2d
Mail Server IPs
- 52.101.11.19 ↩ mail-sa9pr04cu00203.inbound.protection.outlook.com
- 52.101.50.10 ↩ mail-mw2pr02cu00502.inbound.protection.outlook.com
- 52.101.194.17 ↩ mail-ch5pr02cu00401.inbound.protection.outlook.com
- 52.101.41.183 ↩ mail-byapr04cu00307.inbound.protection.outlook.com
- 2a01:111:f403:c902::14 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 2a01:111:f403:f907::1 ↩ mail-dm1pr04cu00201.inbound.protection.outlook.com
- 2a01:111:f403:c922::2 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
- 2a01:111:f403:c946::4 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
SOA Record
Raw SOA
liz.ns.cloudflare.com dns.cloudflare.com 2397041207 10000 2400 604800 1800
Primary NS (mname)
liz.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397041207
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
liz.ns.cloudflare.com
nitin.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:75.149.145.37 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com include:one.zoho.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
2 records- MS=ms48163929
- SPFv=spf1 ip4:75.149.145.37 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com include:one.zoho.com ~all
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