zimbra.com
Observed Jul 24, 2026, 03:03 UTC (5h ago). Every field below was attested with an Ed25519 signature at scan time. Catalog observation, re-checked on rotation — watch it for 5-minute checks.
Up right now
Runs onFastly
Email byMimecast
Secured byLet's Encrypt
Registered withCSC Corporate Domains, Inc.
Also usesHubSpot
IPv6 · 1 subdomain · tranco_5k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat zimbra.com actually stands on - every host below is a signed observation
zimbra.com
A / AAAA
23.185.0.22620:12a:8000::22620:12a:8001::2
Fastlyserves the site
NS
dns1.p05.nsone.netdns2.p05.nsone.netdns3.p05.nsone.netdns4.p05.nsone.net
nsone.netanswers its DNS
MX
us-smtp-inbound-1.mimecast.comus-smtp-inbound-2.mimecast.com
Mimecastreceives its email
TLS
zimbra.com
Let's Encryptissued its certificate
DNS Records
A 1
23.185.0.2
AAAA 2
2620:12a:8000::22620:12a:8001::2
MX 2
10us-smtp-inbound-1.mimecast.com10us-smtp-inbound-2.mimecast.com
TXT 3
v=spf1 ptr mx ip4:52.7.157.95 ip4:52.70.125.224 ip4:52.204.246.185 ip4:52.205.85.65 ip4:66.64.15.66 ip4:167.89.32.168 ip4:173.227.76.247 ip4:14.141.104.38 ip4:193.122.206.174 ip4:193.122.199.60 ip4:129.213.200.110 ip4:150.136.98.232 ip4:150.136.146.2 ip4:129.80.213.239 ip4:193.122.157.30 ip4:141.148.3.168 ip4:129.213.104.172 ip4:193.122.141.196/32 ip4:150.136.208.81/32 include:us._netblocks.mimecast.com include:_spf.salesforce.com include:212115.spf01.hubspotemail.net include:4366039.spf01.hubspotemail.net -allcisco-ci-domain-verification=681f562fa07c58c993c8bfde487542cb70b5b5eef7753e423d2ff666ce4f33b5linkedin-site-verification=ae9a3118-fc72-40a5-9e5a-246a2fda8ebc0ed1fe018af82aa0df68164d5ebf2117796408d42cv=DMARC1;p=reject;rua=mailto:dmarc@zimbra.com;ruf=mailto:dmarc@zimbra.com;aspf=s;sp=none
NS 4
dns1.p05.nsone.netdns2.p05.nsone.netdns3.p05.nsone.netdns4.p05.nsone.net
SOA 1
dns1.p05.nsone.net hostmaster.nsone.net
SRV 1
mail.zimbra.com:443 p0
CAA 3
issue "digicert.com"issue "letsencrypt.org"issue "pki.goog; cansignhttpexchanges=yes"
TLS Certificates (2)
| Common Name | Issuer | Expires |
|---|---|---|
zimbra.com |
C=US, O=Let's Encrypt, CN=R13 | Sun, 23 Aug 2026 05:01:19 +0000 |
R13 |
C=US, O=Internet Security Research Group, CN=ISRG Root X1 | Fri, 12 Mar 2027 23:59:59 +0000 |
Subdomains (1)
The proof
Signed at scan time. Check the math yourself. Every line above is part of one signed observation. Re-hash it and check the Ed25519 signature in your own browser; nothing leaves your machine.
Verify this receiptPut the receipt on your own site. A live badge showing what DomainDrift observes and signs for zimbra.com. It updates itself. It attests a signed observation - not that the site is safe.
<a href="https://domaindrift.io/t/zimbra.com">
<img src="https://domaindrift.io/badge/zimbra.com.svg"
width="300" height="64" alt="DomainDrift signed observations for zimbra.com">
</a>
Ed25519 Receipt
- Receipt ID
rcpt_57ade9d680c72bb0- Output Hash
045edd42e84f462bc188566c8473b29097ddebcae7f643cd0dfd946aa47ae431- Signature
ed25519:dd33b53e2401d6efc46d898d0b0fb7207feced65c72f911e9869f5a73910e2d6da72bf0ce0831f341e33dde3bac2411db9b880ed86050ac94be5591b5288050c- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast