Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
astd.org
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-24 16:17:57 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-2.mimecast.com
- us-smtp-inbound-1.mimecast.com
MX Priorities
- us-smtp-inbound-1.mimecast.com: 10
- us-smtp-inbound-2.mimecast.com: 10
A / AAAA Records
- 66.227.71.166 (no PTR)
Mail Server IPs
- 170.10.132.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-2.mimecast.com
SOA Record
Raw SOA
ns10.mstdns.com dnsadmin.mindshift.com 2013031896 43200 3600 604800 3600
Primary NS (mname)
ns10.mstdns.com
Admin Email (rname)
dnsadmin@mindshift.com
Serial
2013031896
Refresh
43200s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns13.mstdns.com
ns14.mstdns.com
ns10.mstdns.com
ns12.mstdns.com
ns15.mstdns.com
ns11.mstdns.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:66.227.71.178 include:us._netblocks.mimecast.com include:_netblocks.act-on.net Include:mail.zendesk.com include:spf.mandrillapp.com include:spf.digitalignite.com include:spf.protection.outlook.com include:mailsenders.netsuite.com -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=0; adkim=r; aspf=r; pct=100; rf=afrf; sp=none
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
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
5 records- SPFv=spf1 ip4:66.227.71.178 include:us._netblocks.mimecast.com include:_netblocks.act-on.net Include:mail.zendesk.com include:spf.mandrillapp.com include:spf.digitalignite.com include:spf.protection.outlook.com include:mailsenders.netsuite.com -all
- MS=ms44569625
- MS=ms87901840
- YKge6G2Aud5sqBUeQh4VoP5mTF7r6wyJKEturjmiC6O4coiSaMUblonznVSNabzL2KnItx6xDe/sDNyALoqakA==
- 0ed1fe018aacf67f7c9e54410bb5b3de
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