Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
optos.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-17 19:32:51 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
- 217.114.94.2 (no PTR)
Mail Server IPs
- 170.10.128.141 ↩ 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-2.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-2.mimecast.com
SOA Record
Raw SOA
nelly.ns.cloudflare.com dns.cloudflare.com 2398225615 10000 2400 604800 1800
Primary NS (mname)
nelly.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398225615
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
nelly.ns.cloudflare.com
vicente.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_netblocks.mimecast.com include:_spf-dc2.successfactors.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; fo=1; rua=mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 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
13 records- google-site-verification=bsvB2hsY_W6DRxrI2prBxg7pxiSOSrnkSn0uU8ptQTg
- google-site-verification=hNsoHr4QPVoXQDJeVJZwGUIbaKjXlo8e5_6nTjzfUDU
- google-site-verification=mK0aNI9zb36kpJifQnYT6O4Gu9QHARj5MKGlmwh5g8c
- have-i-been-pwned-verification=43be345edcb5dfc2c49e4a57f3a734ce
- SPFv=spf1 include:_netblocks.mimecast.com include:_spf-dc2.successfactors.com ~all
- 6d988hkrqz0ll38wjfyh43hw94ss27nc
- _cf-custom-hostname.optos.com=a745f612-03c5-46ad-9099-08d48a4eb180
- atlassian-domain-verification=bTv7Up3mF8OpUYC/7aySZYHDAahP7xEXoAmQ8Q0L01ECIx9peJi7pvw1vD1L8Z6a
- docusign=5dd1fdd3-ecfa-4e3d-9195-d53ba6623777
- globalsign-domain-verification=CyP9IpYEYOQG75kMxdOSTRPRXxhzVhYx2fpIp0cpuU
- globalsign-domain-verification=PcAkUjyixW6FxNxCnxRlsiKorDLYxaVt2oCfC8anPF
- globalsign-domain-verification=z31fOC-2BPPciwE7ncY4z8usaP9XoFqRksRzvz8vkK
- google-site-verification=I95z3v7kvNtDa__5QbqlM8M3E4p2oGTWLVAlSISiZ4Y
Full email verification for optos.com
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