Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
zeiders.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-03 10:53:52 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-1.mimecast.com
- us-smtp-inbound-2.mimecast.com
MX Priorities
- us-smtp-inbound-2.mimecast.com: 5
- us-smtp-inbound-1.mimecast.com: 0
A / AAAA Records
- 141.193.213.21 (no PTR)
- 141.193.213.20 (no PTR)
Mail Server IPs
- 170.10.132.242 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-1.mimecast.com
SOA Record
Raw SOA
ns11.constellix.com dns.constellix.com 2015010215 43200 3600 1209600 180
Primary NS (mname)
ns11.constellix.com
Admin Email (rname)
dns@constellix.com
Serial
2015010215
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s
Nameservers (NS)
ns61.constellix.net
ns11.constellix.com
ns21.constellix.com
ns31.constellix.com
ns41.constellix.net
ns51.constellix.net
SPF Record
✓ Soft Fail (~all)
v=spf1 mx ip4:204.187.13.227 ip4:204.13.49.57 ip4:167.89.11.197 ip4:54.240.0.0/18 include:spf.protection.outlook.com include:us_cornerstonespf.zeiders.com include:sendgrid.net include:us._netblocks.mimecast.com include:amazonses.com ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 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
12 records- apple-domain-verification=aO0U2lJAbXRh1reH
- MS=ms62689227
- ZOOM_verify_1Y-KO2pCRl6y8aSSAeMBAg
- 32x8cxqpksfxlkn04l0x3dsk96qxyxnt
- google-site-verification=ZiADXySgPUEYPUit2uUKTEJBAJvrrzbw9W-t-qaXdhQ
- hf3wSE6YivJjDreF2velLMaZIt0yI2FNJtVHtfQcO3Q=
- nitro-verification-code=LTMyNTgyMDkxNDU2MDAyMjk5ODA=
- asv=4d5f04ecb26901a7491d2d03f0fc8f19
- MS=138ACE31A6A9106A86C82EA8620B62FA267F8322
- duo_sso_verification=XYZ4anQ7nFbwTsyZu76EQMPWFHCc5oI4DyBf4c62cqUGWkE41qlDLPas2UisuDMK
- SPFv=spf1 mx ip4:204.187.13.227 ip4:204.13.49.57 ip4:167.89.11.197 ip4:54.240.0.0/18 include:spf.protection.outlook.com include:us_cornerstonespf.zeiders.com include:sendgrid.net include:us._netblocks.mimecast.com include:amazonses.com ~all
- dropbox-domain-verification=4vgowcq0x1sx
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