Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
atecsystems.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 20:39:58 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-1.mimecast.com
- us-smtp-inbound-2.mimecast.com
MX Priorities
- us-smtp-inbound-2.mimecast.com: 20
- us-smtp-inbound-1.mimecast.com: 10
A / AAAA Records
- 52.20.165.86 ↩ ec2-52-20-165-86.compute-1.amazonaws.com
- 54.225.165.204 ↩ ec2-54-225-165-204.compute-1.amazonaws.com
- 3.226.121.98 ↩ ec2-3-226-121-98.compute-1.amazonaws.com
- 107.21.147.179 ↩ ec2-107-21-147-179.compute-1.amazonaws.com
- 54.146.66.18
- 32.192.28.16
Mail Server IPs
- 170.10.128.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-1.mimecast.com
SOA Record
Raw SOA
ns-55.awsdns-06.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-55.awsdns-06.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1112.awsdns-11.org
ns-1790.awsdns-31.co.uk
ns-55.awsdns-06.com
ns-702.awsdns-23.net
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:us._netblocks.mimecast.com include:_spf.psm.knowbe4.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; pct=100;
✓ Reject — strongest protection
📋 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
7 records- SPFv=spf1 include:spf.protection.outlook.com include:us._netblocks.mimecast.com include:_spf.psm.knowbe4.com ~all
- 0ed1fe018aa0ad8603ee5b41bcb6fa4b37f345968a
- MS=ms21795080
- atlassian-domain-verification=mgHraebU8UiqXPyRzBPvE5kvmehAFPBuHGMLCDZ4w9dzhKa2aQ3qA/FzPH6CvBkv
- citrix-verification-code=c9134f4e-faf8-4934-9bae-87469ab0df93
- docusign=9799c25f-b8c2-4274-8773-4821022393cc
- knowbe4-site-verification=343ff58bc96f0ab18eb9d691d4532fca
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