Delti / InterNetX (DE) mailbox provider

According to Live Direct Marketing's daily Tranco top-1M scan (July 13, 2026), Delti / InterNetX (DE) is the mailbox provider for 32 domains — 0.00% of 658,711 domains with MX records. Detection method: primary MX record (lowest preference).

Key facts

Delti is the email hosting service operated by InterNetX, a German domain registrar and web hosting provider, serving small and medium-sized organisations chiefly in German-speaking markets.

Delti's presence in email infrastructure is distributed across a specific demographic: the primary MX provider for smaller websites, with notable concentration in the .de top-level domain and related German TLDs. Senders experience Delti most directly when targeting recipients in Germany or organisations with German-registered domains. A common pattern is the co-occurrence of Delti mailboxes with Mandrill on the same domains, reflecting organisations that host inbound mail via Delti whilst using Mandrill (MailChimp's transactional service) for outbound campaign dispatch.

Where Delti / InterNetX (DE) sits in the Tranco ranking

Tranco rank bandDomainsShare of its base
Top 1,00000.0%
Top 10,00000.0%
Top 100,00026.2%
Top 1,000,0002887.5%
Unranked26.2%

Top-level domain split

TLDDomainsShare
.de618.8%
.com412.5%
.fr39.4%
.es26.2%
.ch26.2%
.nl26.2%
.it26.2%
.at26.2%
.co.uk13.1%
.hu13.1%

What Delti / InterNetX (DE) users also use

Cross-tabulated from the same daily snapshot — the other email services seen on the same 32 domains.

TypeServiceDomainsShare of Delti / InterNetX (DE) users
ESPMandrill1031.2%
ESPMailchimp618.8%
ESPZendesk39.4%

Regional and demographic concentration in German-speaking infrastructure

Delti's infrastructure clusters heavily in German-speaking regions and smaller-site deployments. This concentration is neither a deliverability problem nor an advantage—it is simply the shape of its market. For senders and deliverability teams targeting German audiences or auditing inboxes on German domains, Delti is a frequent and relevant part of the landscape. Campaigns focused on other regions will encounter it less frequently. Testing scope and prioritisation should align with your own recipient geography and market focus.

See the full Delti / InterNetX (DE) data page (KPI cards, trend, sample domains) →

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Frequently asked questions

What is Delti, and how often will I encounter it?

Delti is InterNetX's email hosting service for small and medium businesses, primarily in German-speaking regions. You will encounter it frequently if your recipients include significant numbers in Germany or on German-registered domains; otherwise, it appears more sporadically in global email infrastructure.

How many domains use Delti / InterNetX (DE)?

32 domains in the Tranco top-1M use Delti / InterNetX (DE) as their mailbox provider as of July 13, 2026 (0.00% of domains with MX records), according to Live Direct Marketing's daily DNS scan.

Is Delti / InterNetX (DE) common enough to affect email deliverability testing?

Delti / InterNetX (DE) accounts for 0.00% 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 Delti / InterNetX (DE) most?

Delti / InterNetX (DE)'s largest TLD is .de (18.8% of its domains); it appears across 17 TLDs in total.

Other mailbox providers

Self-Hosted (22.44%)Google Workspace (21.79%)Microsoft 365 (16.74%)Unknown / Other (7.54%)Generic / unmatched (mx*.*) (2.57%)Proofpoint (1.90%)Generic / unmatched (mail.*) (1.75%)Yandex 360 (1.64%)Cloudflare Email Routing (1.60%)Mimecast (1.52%)