Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sgi-usa.org
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 06:21:26 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-1.mimecast.com
- us-smtp-inbound-2.mimecast.com
MX Priorities
- us-smtp-inbound-2.mimecast.com: 10
- us-smtp-inbound-1.mimecast.com: 10
A / AAAA Records
- 151.101.65.72 (no PTR)
- 151.101.193.72 (no PTR)
- 151.101.129.72 (no PTR)
- 151.101.1.72 (no PTR)
Mail Server IPs
- 170.10.128.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-2.mimecast.com
SOA Record
Raw SOA
auth1.dns.cogentco.com dns.cogentco.com 2025101300 10800 3600 604800 43200
Primary NS (mname)
auth1.dns.cogentco.com
Admin Email (rname)
dns@cogentco.com
Serial
2025101300
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
43200s
Nameservers (NS)
auth1.dns.cogentco.com
auth2.dns.cogentco.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:208.28.35.8 include:_netblocks.mimecast.com include:spf.constantcontact.com include:spf.sendinblue.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
9 records- include:spf.protection.outlook.com
- sendinblue-code:e31f55d118bfe6beab0f13b856cf6ba5
- MS=ms49493135
- atlassian-domain-verification=5XLKFPva7Rhl3CYjNu7GtwA5oQZjfaskUcb5k2iVF/0SGEFai5DA55PeynzcHTyq
- SPFv=spf1 ip4:208.28.35.8 include:_netblocks.mimecast.com include:spf.constantcontact.com include:spf.sendinblue.com -all
- z2Qw7cxKLFtOe+YulUYmt7Y8Sfuh9XL4qj7XRNgcwPPMNkJ0RUsSJmwXcDjPJgxxvV81NxZeBkdhLj+ijhhCXw==
- google-site-verification=y0hZfjM5r5-8RSo3MQbs3SUwKcId6lB5cNTMKhGLKzQ
- MS=115C7C521ACF4B43811E84308CAC32F336D74821
- 0ed1fe018ab54577d8c9d346dea5a8592796d7ede9
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