Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
armhc.org
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-21 09:03:45 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-1.mimecast.com
- us-smtp-inbound-2.mimecast.com
MX Priorities
- us-smtp-inbound-2.mimecast.com: 0
- us-smtp-inbound-1.mimecast.com: 0
A / AAAA Records
- 64.62.251.137 ↩ ds36.tvsecure.com
Mail Server IPs
- 170.10.128.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-1.mimecast.com
SOA Record
Raw SOA
dns1.1sourcing.net netops.ribbit.net 2025121101 216000 3600 777600 3600
Primary NS (mname)
dns1.1sourcing.net
Admin Email (rname)
netops@ribbit.net
Serial
2025121101
Refresh
216000s
Retry
3600s
Expire
777600s
Minimum TTL
3600s
Nameservers (NS)
dns2.1sourcing.net
dns3.1sourcing.net
dns1.1sourcing.net
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:167.89.92.40 ip4:64.62.251.137 include:us._netblocks.mimecast.com include:spf.protection.outlook.com include:relay.mailchannels.net include:spf.US.exclaimer.net include:outboundmail.convio.net include:sendgrid.net ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 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
6 records- SPFv=spf1 ip4:167.89.92.40 ip4:64.62.251.137 include:us._netblocks.mimecast.com include:spf.protection.outlook.com include:relay.mailchannels.net include:spf.US.exclaimer.net include:outboundmail.convio.net include:sendgrid.net ~all
- MS=ms50737161
- WfjkmJGSmtKeVrtakS5NYZ4qog3a2aknMBTihlipohUFkFzLLtqlB9Ah4YcU/GGLj8CyJwj0Obuztr7bLMpOcg==
- amazonses:Qt/NFta4kAaeLpjywMV2ZX3Lfxv+qXFt7wqCJCzpjbU=
- 0ed1fe018a63ee02fa0f5f445bbc140063f8245f88
- 2254E87A8F
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