MarkMonitor (corporate) mailbox provider
According to Live Direct Marketing's daily Tranco top-1M scan (September 10, 2026), MarkMonitor (corporate) is the mailbox provider for 127 domains — 0.02% of 667,099 domains with MX records. Detection method: primary MX record (lowest preference).
Key facts
- 127 domains in the Tranco top-1M use MarkMonitor (corporate) (0.02% of domains with MX records).
- Snapshot date: 2026-09-10 — recomputed every day.
- Strongest TLD: .de (67.7% of its domains).
- Region skew: Germany.
- Most co-used service: Mandrill.
- Directory category: corporate mail infrastructure.
Why MarkMonitor (corporate) appears in this category
Clarivate brand-protection registrar (Fortune-500 customers).
We classify it as a corporate mail infrastructure from primary MX record (lowest preference) matching a maintained provider rule. This is infrastructure attribution from public DNS, not evidence of a direct contract or exclusive use.
MarkMonitor (corporate) functions as a mailbox provider, appearing as the primary MX record for sites that choose it for email hosting. It is most prevalent among smaller to mid-market sites rather than the largest global brands.
The concentration of MarkMonitor usage in the .de domain space and German-market infrastructure means senders and recipients engaged with that regional segment may encounter it regularly. When MarkMonitor appears alongside Mandrill (MailChimp's transactional email service), it often signals a hybrid setup where the site manages user mailboxes via MarkMonitor whilst routing transactional mail through Mandrill.
Where MarkMonitor (corporate) sits in the Tranco ranking
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 0 | 0.0% |
| Top 10,000 | 0 | 0.0% |
| Top 100,000 | 0 | 0.0% |
| Top 1,000,000 | 126 | 99.2% |
| Unranked | 1 | 0.8% |
Top-level domain split
| TLD | Domains | Share | |
|---|---|---|---|
| .de | 86 | 67.7% | |
| .com | 18 | 14.2% | |
| .net | 4 | 3.1% | |
| .us | 4 | 3.1% | |
| .fr | 2 | 1.6% | |
| .asia | 2 | 1.6% | |
| .pl | 1 | 0.8% | |
| .org | 1 | 0.8% | |
| .tt | 1 | 0.8% | |
| .mx | 1 | 0.8% |
What MarkMonitor (corporate) users also use
Cross-tabulated from the same daily snapshot — the other email services seen on the same 127 domains.
| Type | Service | Domains | Share of MarkMonitor (corporate) users |
|---|---|---|---|
| ESP | Mandrill | 1 | 0.8% |
MarkMonitor and Mandrill Integration Patterns
Sites that use MarkMonitor for user mailboxes and Mandrill for transactional email create a split infrastructure where authentication policies must cover both endpoints. This arrangement is typical of platforms handling both customer-to-customer messaging (via MarkMonitor-hosted inboxes) and system-generated notifications (via Mandrill), requiring distinct sender reputation profiles for each channel.
See the full MarkMonitor (corporate) data page (KPI cards, trend, sample domains) →
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Frequently asked questions
Should I test email deliverability against MarkMonitor?
MarkMonitor is an email hosting provider used by smaller sites rather than major brands, with particular concentration in the German (.de) domain space. If your audience skews toward German or Central European markets, it is worth including in your deliverability test matrix.
How many domains use MarkMonitor (corporate)?
127 domains in the Tranco top-1M use MarkMonitor (corporate) as their mailbox provider as of September 10, 2026 (0.02% of domains with MX records), according to Live Direct Marketing's daily DNS scan.
Is MarkMonitor (corporate) common enough to affect email deliverability testing?
MarkMonitor (corporate) accounts for 0.02% 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.
Which countries or TLDs use MarkMonitor (corporate) most?
MarkMonitor (corporate)'s largest TLD is .de (67.7% of its domains); it appears across 17 TLDs in total.