Inxmail and rapidmail split the bench by criterion rather than by judge. Inxmail is ahead on integrations (6.8 to 4.0; six judges lean Inxmail), its verdict crediting self-service SOAP and REST APIs with public documentation plus named connections to Shopify, Magento, Shopware, OXID, Salesforce and Microsoft Dynamics. rapidmail is ahead on sovereignty (6.8 to 2.7; six lean rapidmail), consent and proof (5.0 to 3.5; six), campaign and automation (6.2 to 5.2; five lean, one tie) and pricing transparency (5.2 to 0.5; six — rapidmail shows prices at the 500-contact step, and Inxmail publishes no prices, noted as a B2B norm). The genuine splits are deliverability (4.0 vs 4.2; five ties, one lean to rapidmail) and list data control (5.7 vs 6.0; four ties, two leans to rapidmail). Weighted totals are on record for five judges; rapidmail scores higher in each, and we found no totals for the e-commerce owner.
Choose Inxmail if
You build your own connectors and need documented self-service APIs — six judges lean Inxmail on integrations (6.8 to 4.0), crediting public SOAP and REST documentation and a Commerce API for transactional workflows.
Your stack includes Shopify, Magento, Salesforce or Microsoft Dynamics — Inxmail documents named connections to these platforms; rapidmail's documented integration surface is Shopware 6 and Plentymarkets.
You send transactional email and need an SMTP mail relay module alongside newsletters — both are named modules in Inxmail's line-up.
You synchronise recipient responses, delivery information and subscription states into your own warehouse or CRM — Inxmail documents bidirectional export for this.
Choose rapidmail if
You need your provider contracted in Germany with servers in Germany — rapidmail's data processing agreement assures server location Germany, and sovereignty runs 6.8 to 2.7 with six judges leaning rapidmail.
Your security review requires an ISO 27001-certified datacenter and daily encrypted backups on German servers — rapidmail documents both.
Your compliance team limits subprocessor exposure to the EU — rapidmail's attribute is EU-only; Inxmail's is US Cloud Act.
You must export consent records together with your lists — rapidmail's CSV and Excel exports include the double opt-in record, and consent and proof runs 5.0 to 3.5 with six leans to rapidmail.
You want to see prices before talking to sales — rapidmail shows prices at the 500-contact step (pricing transparency 5.2 to 0.5, six leans), while Inxmail publishes no prices.
Read this comparison as one judge. Each weighs the same scores by what they care about.
The Integrator
Has to wire this into a stack that already exists. Wants a documented API with rate limits, webhooks that retry, a sandbox and a deprecation policy. Treats a partner-form integration page as a missing API, and reads "Zapier supported" as an outsourced one.
Inxmail
rapidmail
This judge's pick
Criterion by criterion
Campaigns & automation
Inxmail
The captured pages show a drag-and-drop editor, an audience editor segmenting on language, location and purchasing behaviour, visual workflows with templates for common sequences, and dynamic content as an add-on — most of a solid mid-level package. We found no public information on A/B testing, send-time optimisation or holdout measurement, so the testing dimension stays unevidenced.
rapidmail
The visual workflow builder with if/then branching, triggers on signup, recipient activity or date, and documented use cases from welcome mailings to reactivation of inactive contacts is a real automation engine, not a single welcome mail. I found no public information on subject-line A/B testing, dynamic content per segment or send-time optimisation, so it stops short of the higher rungs.
Deliverability infrastructure
Inxmail
Authentication, automatic bounce management and delivery-status feedback into customer systems are documented, and a spam-rate limit of 0.3 percent plus a named deliverability team read as an enforced policy rather than a marketing number. We found no public information on SPF, DKIM or DMARC setup, custom or dedicated sending domains, warm-up or inbox-placement testing.
rapidmail
Authentication is properly documented — DKIM, SPF as a CNAME, DMARC with its policy options explained, and per-webhoster setup guides — but that is where the documentation ends. I found no public information on automatic bounce suppression, complaint-loop handling, dedicated IP options or warm-up, and deliverability otherwise appears mainly as an advertised rate.
Consent, proof & tracking limits
Inxmail
Double opt-in appears in specific connectors (Meta Lead Ads, Shopware) and consent is listed as data transferable to a leading system, but we found no public information on what the consent record contains, one-click unsubscribe, or access and erasure handling. Tracking and reporting being optional is a genuine point in the vendor's favour here.
rapidmail
Double opt-in is applied automatically and the proof is exportable per contact — IP address, date and time for both the signup and the confirmation — a consent record I could actually hand to a lawyer. The privacy policy describes a tracking pixel and tracking links in every mailing, though, and I found no public information on turning tracking off per campaign.
List ownership, import & exit
Inxmail
Bi-directional export automation is documented to carry recipient responses and delivery information into a campaign management tool or data warehouse, and the use cases name synchronising subscriptions and unsubscriptions with the CRM — enough to move the list and its history elsewhere. We found no public information on documented deletion of a subscriber across all records, export throttling, or full-account export.
rapidmail
Recipients export as CSV with the double opt-in proof included, per-mailing recipient activity — opens, clicks, bounces, unsubscribes — exports from the statistics view, and lists can be duplicated, merged and restored from backup. I found no public information on exporting campaigns and templates, on a documented whole-account exit, or on import with custom attributes intact.
Integrations & API
Inxmail
A self-service SOAP and REST API with documentation, plus a Commerce API to trigger events and read transaction results, is exactly the surface I need, and the catalogue names Shopify, Magento, OXID, Salesforce and Microsoft Dynamics with case studies behind it. But we found no public information on rate limits, webhook retries, a sandbox or a deprecation policy, and a large share of the claimed breadth — Zapier, Make, Marini, Syncler, com:con — routes through third parties rather than vendor-maintained connectors.
rapidmail
There is a public developer documentation URL and an API that both sends mailings and manages recipients, plus a Shopware 6 plugin and a Plentymarkets interface — a write-capable surface rather than a read-only one. But I found no public information on webhooks, documented rate limits, a sandbox, a versioned API with a deprecation policy, or any named CRM integration, which is precisely the surface I need before wiring this into an existing stack.
European sovereignty
Inxmail
Inxmail GmbH is named on the vendor's own pages and the vendor is presented as based in Germany, which rules out the offshore scenario, but we found no public information on where subscriber data and behavioural tracking are hosted, on the contracting entity's jurisdiction beyond the company name, or on subprocessors and certifications. I weight this heavily, and an unconfirmed chain with no published subprocessor information caps it low.
rapidmail
The contracting entity is Positive Group Deutschland GmbH in Freiburg, the data processing agreement confirms server location Germany, and the vendor states no third-country transfer, backed by an ISO 27001 certified datacenter and daily encrypted backups on German servers. I found no public information on the datacenter operator's name or a complete subprocessor list, so the chain rests on the vendor's own statements rather than a verifiable register.
Pricing transparency
Inxmail
The captured pages offer a free test and a personal live demo as the entry path, and the SMTP relay page lists inclusions — hosting and administration costs, 1 hour of user support per month, deliverability team assistance — with no price figures attached. We found no public information on tier prices, contact or send limits, or overage rates.
rapidmail
Three monthly tiers are public — "15,00 € / Monat bis zu 500 Kontakte" for Essential, "25,00 €" Performance, "35,00 €" Unlimited — plus a pay-as-you-go "20,00 € / Gesamt" send of 500 emails with no contract term, and the feature boundaries per tier such as automation counts and sender addresses are stated precisely. Only the 500-contact price point is shown, however, and I found no public information on send limits for the lower tiers, overage rates, VAT treatment or a price calculator.
Sovereignty, side by side
Dimension
Inxmail
rapidmail
Legal entity
Not determined
Incorporated in DE
Ownership
Not determined
Not determined
Data residency
Not determined
EU only
Subprocessors
Not determined
EU only
Facts, side by side
Only facts both products carry under the same definition — anything else would not be a fair row.