Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
helenkeller.org
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 18:08:01 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-2.mimecast.com
- us-smtp-inbound-1.mimecast.com
MX Priorities
- us-smtp-inbound-2.mimecast.com: 10
- us-smtp-inbound-1.mimecast.com: 10
A / AAAA Records
- 141.193.213.11 (no PTR)
- 141.193.213.10 (no PTR)
Mail Server IPs
- 170.10.128.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-2.mimecast.com
SOA Record
Raw SOA
ns-19.awsdns-02.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-19.awsdns-02.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-19.awsdns-02.com
ns-753.awsdns-30.net
ns-1486.awsdns-57.org
ns-1874.awsdns-42.co.uk
SPF Record
✓ Strict (-all)
v=spf1 +include:outboundmail.blackbaud.net include:us._netblocks.mimecast.com mx a ip4:47.19.154.26/32 ip4:199.193.79.18/32 ip4:167.224.103.88/29 ip4:209.202.224.86 include:spf.protection.outlook.com include:spf.emailsignatures365.com -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; fo=1
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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- 90trn3hojnuk28bjrufi6cqg89
- MS=ms43461489
- ZOOM_verify_NSLpq0Z6sGY20dApT1C8O9
- apple-domain-verification=ibhJoOBugX6iSBsA
- r98dbtopcpedc0snak5bjtikhc
- SPFv=spf1 +include:outboundmail.blackbaud.net include:us._netblocks.mimecast.com mx a ip4:47.19.154.26/32 ip4:199.193.79.18/32 ip4:167.224.103.88/29 ip4:209.202.224.86 include:spf.protection.outlook.com include:spf.emailsignatures365.com -all
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