Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sim.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 19:43:43 UTC · ↺ Refresh
MX Hostnames
- sim-org.mail.protection.outlook.com
MX Priorities
- sim-org.mail.protection.outlook.com: 0
A / AAAA Records
- 23.185.0.2 (no PTR)
- 2620:12a:8000::2 (no PTR)
- 2620:12a:8001::2
Mail Server IPs
- 52.101.194.0 ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 52.101.194.3 ↩ mail-ch1pr04cu00103.inbound.protection.outlook.com
- 52.101.9.21 ↩ mail-bl2pr04cu00205.inbound.protection.outlook.com
- 52.101.9.2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
- 2a01:111:f403:f907::1 ↩ mail-dm1pr04cu00201.inbound.protection.outlook.com
- 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c92c::3 ↩ mail-dm5pr04cu00103.inbound.protection.outlook.com
- 2a01:111:f403:c946::4 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-994.awsdns-60.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-994.awsdns-60.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-508.awsdns-63.com
ns-994.awsdns-60.net
ns-1218.awsdns-24.org
ns-1625.awsdns-11.co.uk
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:sendgrid.net include:servers.mcsv.net include:amazonses.com include:spf.crm.virtuoussoftware.com include:_spf.intacct.com ip4:173.196.61.235 ip4:173.196.61.236 ip4:173.95.70.226 -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; sp=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 5 found
selector1._domainkey
selector2._domainkey
k1._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
9 records- google-site-verification=2cVHtayrkZGb1BhqdrYS-UFhzb6SamygPwwgg2vqJyA
- google-site-verification=z_kCSzVm28RqDN6APMrhoL4VFthC4y5S3JOhDj60u-Q
- intacct-esk=B7024A795DD3AB31E0539B220D0A6199
- SPFv=spf1 include:spf.protection.outlook.com include:sendgrid.net include:servers.mcsv.net include:amazonses.com include:spf.crm.virtuoussoftware.com include:_spf.intacct.com ip4:173.196.61.235 ip4:173.196.61.236 ip4:173.95.70.226 -all
- 00DfL000007CMJ3=1TBPe00000002g9
- LPRdwVwXxOzpoe7db3nDHmne2ddGXM7zbj3eqRdrp2xu60abSj7mLqVvRBP0ZBpMLZnadKefld8PQB2ISTeBFA==
- MS=ms53798324
- _6h5lmiib90lo4yx94hq107o5oktm3t5
- amazonses:9OxtSlTUUUBk4Y6lLzlNOnm/nMzmEWUivbemO9GRtfw=
Full email verification for sim.org
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits