According to Live Direct Marketing's daily Tranco top-1M scan (July 13, 2026), Trend Micro is the mailbox provider for 1,215 domains — 0.18% of 658,711 domains with MX records. Detection method: primary MX record (lowest preference).
Trend Micro operates email security gateways and hosted email platforms, providing filtering and threat protection to organisations of various sizes. Its Email Security service is the most common touchpoint for senders — mail destined for Trend Micro-hosted inboxes is processed through its centralised filtering infrastructure.
Across the Tranco top-1M domain list, Trend Micro serves as the primary mail exchanger predominantly for smaller and mid-sized sites in the long tail rather than the largest brands globally. Its deployment spans many countries and TLDs, with particular concentration in .com domains and a skew towards North America. For email senders, this pattern means encountering Trend Micro more frequently on smaller-domain recipients, where mail passes through shared platform filtering rather than direct ISP delivery.
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 1 | 0.1% |
| Top 10,000 | 16 | 1.3% |
| Top 100,000 | 179 | 14.7% |
| Top 1,000,000 | 923 | 76.0% |
| Unranked | 96 | 7.9% |
| TLD | Domains | Share | |
|---|---|---|---|
| .com | 384 | 31.6% | |
| .co.jp | 103 | 8.5% | |
| .jp | 67 | 5.5% | |
| .com.au | 64 | 5.3% | |
| .com.br | 63 | 5.2% | |
| .com.ar | 44 | 3.6% | |
| .br | 38 | 3.1% | |
| .org | 37 | 3.0% | |
| .ar | 18 | 1.5% | |
| .com.my | 17 | 1.4% |
Cross-tabulated from the same daily snapshot — the other email services seen on the same 1,215 domains.
| Type | Service | Domains | Share of Trend Micro users |
|---|---|---|---|
| ESP | Trend Micro Email Security | 670 | 55.1% |
| ESP | Amazon SES | 104 | 8.6% |
| ESP | Salesforce | 88 | 7.2% |
| ESP | Zendesk | 85 | 7.0% |
| ESP | Mailchimp | 66 | 5.4% |
| ESP | SendGrid (Twilio) | 63 | 5.2% |
| ESP | Mandrill | 45 | 3.7% |
| ESP | Mailgun | 43 | 3.5% |
| ESP | Proofpoint | 34 | 2.8% |
| ESP | HubSpot | 28 | 2.3% |
Trend Micro Email Security operates as a shared platform gateway, meaning reputation and filtering rules are enforced across multiple customer organisations simultaneously. Senders may experience stricter or more aggressive filtering on Trend Micro-hosted domains than on direct ISP providers, since the platform must balance security requirements across all its downstream customers from a single vantage point. Bounce and complaint feedback flows through Trend Micro's systems rather than per-domain controls, affecting reputation signals for future mail to the platform.
See the full Trend Micro data page (KPI cards, trend, sample domains) →
Yes, if your recipient list includes smaller or mid-market domains using Trend Micro Email Security. Trend Micro's concentration in the long tail of websites makes it relevant for senders targeting domains outside the largest global enterprises.
1,215 domains in the Tranco top-1M use Trend Micro as their mailbox provider as of July 13, 2026 (0.18% of domains with MX records), according to Live Direct Marketing's daily DNS scan.
Trend Micro accounts for 0.18% of domains with MX records in the top 1M. Whether you should seed a test mailbox there depends on how much of your audience it represents — the co-usage table above shows the services it appears alongside most.
Trend Micro's largest TLD is .com (31.6% of its domains); it appears across 114 TLDs in total.