In-depth architectural comparison of the Email Spam Tester and TrustyData MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.
At a Glance & Executive Verdict
Email Spam Tester
Communication · Remote HTTP/SSE
Quality: 82/100 (Excellent) | Auth: No auth required
TrustyData
Communication · Remote HTTP/SSE
Quality: 55/100 (Good) | Auth: OAuth 2.0
Verdict Summary: Choose Email Spam Tester if you need specialized Communication tools running via a hosted cloud SSE transport. Choose TrustyData if your workspace requires Communication integration with remote web transport. Both servers can be configured concurrently in your client's mcpServers manifest.
Which MCP Server Should You Choose?
Choose Email Spam Tester when:
You need dedicated capabilities in the Communication domain.
You prefer remote streaming HTTP/SSE transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
Email deliverability testing for agents. Four tools: get a disposable test address, wait for the report once the message arrives, read it, and fetch the raw source. The report has 42 checks (SPF, DKIM, DMARC, 21 blocklists, two spam engines, Gmail and Yahoo bulk sender rules), each linked to its RFC, plus a fix plan. Remote endpoint, no API key.
French address quality, geocoding & routing from official data (BAN, INSEE, OpenStreetMap).
Category & Scope
Tools & Capabilities Breakdown
Email Spam Tester Tools (4)
get_test_address
Reserve a single-use address to send a draft email to, for a full check.
Returns the address and the URL its report will appear at. The address
accepts exactly one message and expires after an hour. The email has to be
sent by the person, from the platform or mailbox they really send from:
half the checks read what that platform adds. The report covers 42 checks
(SPF, DKIM, DMARC, reverse DNS, TLS, blocklists, content, links, the
Gmail and Yahoo bulk-sender rules) and a plan of what to fix.
lang is decided now because the message arrives minutes later over SMTP,
which carries no hint of who is waiting for it. What wait_for_report
returns quotes check lines in English whatever it is set to; the person
following report_url sees their own language.
wait_for_report
Wait until the message arrives and has been analysed, then summarise it.
Call it after the email has been sent to the address from
get_test_address. Blocks rather than returning "not ready yet": an agent
told to poll writes a sleep loop and usually gives up before the analysis
finishes. Provider placement keeps filling in for up to 30 minutes after
the report; get_report reads the latest.
get_report
Read a report by its slug without waiting, with provider placement so far.
Works for one-hour tests and for letters in the person's series mailboxes.
Ready-to-Paste Client Configurations
Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).
Email Spam Tester is categorized under Communication and uses a remote streaming HTTP/SSE transport. In contrast, TrustyData belongs to Communication using remote streaming HTTP/SSE transport. Select Email Spam Tester when you need capabilities focused on communication and TrustyData when you require tools for communication.
The message exactly as it was received: headers, both bodies, source.
Useful when a finding points at a header and the agent needs to see what it
actually sent rather than what it believes it sent, or to find the
confirmation link in a welcome letter.
TrustyData Tools (11)
verify_address
Verify & normalize a French address against the BAN
search_address
Autocomplete / search full addresses
get_address_details
Full detail for a given address id
search_locality
Search French communes / localities
search_nearby
Proximity search around a point
route_matrix
Travel-time / distance matrix (car, foot, bike)
compute_route
Full road route between points (car, foot, bike)
search_company
Search French companies & establishments in the SIRENE registry (name, SIREN/SIRET, activity, location)
get_company_details
Full record of an establishment or company (identity, executives, finances, collective agreements — by plan)
zone_stats
Everything about a catchment area (drive time or radius): population, households, income, age & socio-professional profile, spending potential, DVF real-estate sale prices (5-year trend, vs. département) and establishment counts by activity (SIRENE, density per 10,000 inhabitants, index vs. France…
zone_compare
Compare 2–10 catchment areas: exclusive population, pairwise overlaps, ranking — each with its full `zone_stats` block, real-estate prices and activity counts included