Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
redriver.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 20:37:22 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-1.mimecast.com
- us-smtp-inbound-2.mimecast.com
MX Priorities
- us-smtp-inbound-1.mimecast.com: 10
- us-smtp-inbound-2.mimecast.com: 10
A / AAAA Records
- 141.193.213.21 (no PTR)
- 141.193.213.20 (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
- 170.10.132.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-1.mimecast.com
SOA Record
Raw SOA
ns1-05.azure-dns.com hostmaster.redriver.com 53 3600 600 604800 1800
Primary NS (mname)
ns1-05.azure-dns.com
Admin Email (rname)
hostmaster@redriver.com
Serial
53
Refresh
3600s
Retry
600s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
ns3-05.azure-dns.org
ns4-05.azure-dns.info
ns1-05.azure-dns.com
ns2-05.azure-dns.net
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:209.190.160.230 ip4:209.190.160.231 ip4:209.190.160.232 ip4:209.190.160.237 ip4:168.245.103.211 include:autotask.net include:306754.spf06.hubspotemail.net include:_spf.sendergen.com include:us._netblocks.mimecast.com ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected],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],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
10 records- MS=7E57DF99D4351CFE1B75A7A8DF90B46F4D52583BMS=ms23307077
- ciscocidomainverification=64c1eabfdc1d5de63b12be390420fd896fbebf5c91311e2bc84935dc538e0bd4
- dOpVFfoy8BwmtCHKnSNXhqh2svIJsQ21DoH8u/lo8SdWdFcs7zgxLlGX6etrinYz4O4ObD7+wMWRGwFiBo0I0A==
- docusign=0f51c2d4-6062-4a21-ac70-a2158a64e9af
- smartsheet-site-validation=YBYnugpf3AXREiAWqqze2xMZk1TBV29E
- tfJVzUKsQBhOLgR2lMWN1UZJAutPrQjFefG7DolXuwozNI4ZSd1EADAYfZge6+Uxre1nfmFif7xs9FeWFyIJKg==
- google-site-verification=qOKK3_TQlf35y8xBF2mnKRxJEm1ZHw6MIeRnsDXyaZc
- identrust_validate=iVqEbQQk/9y7jW8Fs/Hc81Ve+HCJ4JqOjWZa8aNbr2pz
- identrust_validate=8569CV3Y9ThVwrX3OxY+jM7IK1g3rxp2IdRD1zS6QDaN
- SPFv=spf1 ip4:209.190.160.230 ip4:209.190.160.231 ip4:209.190.160.232 ip4:209.190.160.237 ip4:168.245.103.211 include:autotask.net include:306754.spf06.hubspotemail.net include:_spf.sendergen.com include:us._netblocks.mimecast.com ~all
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