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Email infrastructure of zyxel.com

According to Live Direct Marketing's daily DNS scan (July 12, 2026), zyxel.com (Tranco rank #5,205) receives mail via Barracuda and sends through Salesforce, SendGrid (Twilio), HubSpot. Its DMARC policy is p=quarantine — one of the minority (47%) of DMARC publishers that actually enforce.

Mailbox provider (MX)Barracuda
ESPs in SPFSalesforce, SendGrid (Twilio), HubSpot, Zendesk, Rule
SaaS senders in SPFnone detected
DMARC policyp=quarantine
DMARC recordv=DMARC1; p=quarantine; rua=mailto:aggregate_reports@zyxel.com,mailto:dmarc@rule.se; ruf=mailto:forensic_reports@zyxel.com,mailto:authfail@rule.se; fo=1; adkim=r; aspf=r
Tranco rank#5,205
Snapshot2026-07-12 (updated daily)

Frequently asked questions

What email provider does zyxel.com use?

zyxel.com uses Barracuda for inbound mail (detected from its primary MX record) as of July 12, 2026, per Live Direct Marketing's daily Tranco top-1M scan.

What ESP does zyxel.com use?

zyxel.com authorises Salesforce, SendGrid (Twilio), HubSpot, Zendesk, Rule in its SPF record as of July 12, 2026.

Does zyxel.com enforce DMARC?

Partially — zyxel.com publishes p=quarantine (as of July 12, 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 zyxel.com at Gmail, Outlook, Yandex and Mail.ru.
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