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Email infrastructure of zimbra.com

According to Live Direct Marketing's daily DNS scan (July 13, 2026), zimbra.com (Tranco rank #3,851) receives mail via Mimecast and sends through HubSpot, Salesforce, Mimecast. Its DMARC policy is p=reject — one of the minority (47%) of DMARC publishers that actually enforce.

Mailbox provider (MX)Mimecast
ESPs in SPFHubSpot, Salesforce, Mimecast
SaaS senders in SPFnone detected
DMARC policyp=reject
DMARC recordv=DMARC1;p=reject;rua=mailto:dmarc@zimbra.com;ruf=mailto:dmarc@zimbra.com;aspf=s;sp=none
Tranco rank#3,851
Snapshot2026-07-13 (updated daily)

Frequently asked questions

What email provider does zimbra.com use?

zimbra.com uses Mimecast for inbound mail (detected from its primary MX record) as of July 13, 2026, per Live Direct Marketing's daily Tranco top-1M scan.

What ESP does zimbra.com use?

zimbra.com authorises HubSpot, Salesforce, Mimecast in its SPF record as of July 13, 2026.

Does zimbra.com enforce DMARC?

Yes — zimbra.com publishes p=reject, the strictest DMARC policy (as of July 13, 2026).

DNS records say who should deliver your mail — they don't say whether it lands in the inbox. Run a free inbox placement test for zimbra.com at Gmail, Outlook, Yandex and Mail.ru.
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