Hostopia / CarrierZone email provider statistics and deliverability context
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According to Live Direct Marketing's daily Tranco top-1M scan (September 24, 2026), Hostopia / CarrierZone is the mailbox provider for 141 domains — 0.02% of 675,489 domains with MX records. Its strongest TLD is .com (53.2% of its domains). Detection: primary MX record (lowest preference).
Last updated from the 2026-09-24 DNS snapshot.
What Hostopia / CarrierZone represents in this dataset
Canadian wholesale hosting/mail for ISPs/telcos.
Directory category: Hosting. The classification comes from primary MX record (lowest preference). It describes observed DNS infrastructure, not a commercial relationship and not the placement of any individual message.
What the 2026-09-24 snapshot shows about Hostopia / CarrierZone
Across 10 distinct TLDs its top three are .com (53.2%), .net (26.2%), .com.mx (7.8%) — together 87.2% of the 141 domains, which makes the footprint narrow — three TLDs cover most of it, which is typical of a regional or single-market operator. The service most often observed on the same domains is Amazon SES (ESP, 2 domains, 1.4% of them), followed by Customer.io (1.4%). Directly comparable by the same detection rule: Self-Hosted, Google Workspace, Microsoft 365. Ranking between them reflects what is published in DNS, not delivery quality or volume sent. All figures come from a single daily DNS snapshot (2026-09-24); a domain appears here when its published records match the primary MX record (lowest preference) rule, which is an infrastructure fact, not a commercial relationship.
Commonly used together with Hostopia / CarrierZone
What else the same 141 domains use — cross-tabulated from the same daily snapshot (2026-09-24).
| Type | Service | Domains | Share of Hostopia / CarrierZone users |
|---|---|---|---|
| ESP | Amazon SES | 2 | 1.4% |
| ESP | Customer.io | 2 | 1.4% |
| ESP | Mailgun | 2 | 1.4% |
| ESP | Elastic Email | 1 | 0.7% |
| ESP | MailerLite | 1 | 0.7% |
| ESP | KMITD (TH) | 1 | 0.7% |
| ESP | HubSpot | 1 | 0.7% |
| ESP | Constant Contact | 1 | 0.7% |
| ESP | MailChannels | 1 | 0.7% |
| ESP | Mandrill | 1 | 0.7% |
TLD distribution (top 10 of 10)
Frequently asked questions
How many domains use Hostopia / CarrierZone?
141 domains in the Tranco top-1M use Hostopia / CarrierZone as their mailbox provider as of September 24, 2026, according to Live Direct Marketing's daily DNS scan.
What is Hostopia / CarrierZone's market share?
Hostopia / CarrierZone holds 0.02% of domains with MX records in the Tranco top-1M (snapshot of 2026-09-24). The number is recomputed every day.
What are the biggest alternatives to Hostopia / CarrierZone?
The largest mailbox providers in the same category by Tranco top-1M share are: Self-Hosted, Google Workspace, Microsoft 365, Unknown / Other, Generic / unmatched (mx*.*) (as of 2026-09-24).
Largest mailbox providers in this category
Self-Hosted (22.56%) · Google Workspace (21.58%) · Microsoft 365 (17.03%) · Unknown / Other (6.68%) · Generic / unmatched (mx*.*) (2.53%) · Generic / unmatched (mail.*) (1.93%) · Proofpoint (1.86%) · Cloudflare Email Routing (1.76%) · Yandex 360 (1.67%) · Mimecast (1.47%)
Domain sample (top 100 by Tranco rank)
Showing 100 of 141 domains.