Fluxmail vs io.github.mrfentmen/postmark-mcp
Fluxmail is an MCP server published by churichard. Marketplaces we read that list it: 2 (Official MCP Registry, npm registry (MCP servers)). io.github.mrfentmen/postmark-mcp is an MCP server published by mrfentmen. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-25. This pair was picked by a reader, not by our comparison rule, so search engines are asked not to index the page.
Where each is published
| Marketplace |  Fluxmail | |
|---|---|---|
| Official MCP Registry | Listed, marked deprecated Version: 0.12.0 Downloads/month (npm): 2 436 Downloads/week (npm): 557 Forks (GitHub): 0 Stars (GitHub): 7 Not marked · First seen |
Listed Version: 1.0.0 No figure published Not marked · First seen |
| npm registry (MCP servers) | Listed Version: 0.16.0 Downloads/month (npm): 2 436 Downloads/week (npm): 557 Forks (GitHub): 0 Stars (GitHub): 7 Not marked · First seen |
Not listed |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
The facts side by side
| Fact | Fluxmail | io.github.mrfentmen/postmark-mcp |
|---|---|---|
| Marketplaces that list it (differs) | 2 (better) | 1 (worse) |
| Stars (GitHub) (differs) | 7 | No figure on GitHub |
| Forks (GitHub) (differs) | 0 | No figure on GitHub |
| Last release (differs) | 2026-10-21 | Not published |
| Where it runs (differs) | On your machine (fluxmail) | On your machine (@mrfentmen/postmark-mcp) |
| Transport | stdio | stdio |
| Tools it declares | Not published | Not published |
| Environment variables it asks for (differs) | 4, secrets among them: 2 | Not published |
| Licence (differs) | Elastic-2.0 | Not stated |
| Repository (differs) | github.com/churichard/fluxmail | github.com/mrfentmen/premium-mcps |
| Changes in the last 7 days (differs) | 3 | 0 |
| First seen (differs) | 2026-10-11 | 2026-10-17 |
Lines where the two differ have a tinted background and bold values. Where the data itself says which value is better (more marketplaces, a larger figure of the same marketplace, a fresher release, a verified mark on a marketplace that lists both), the better one is also marked green with ▲ and the worse one red with ▼. Where it runs, the transport, the tools, the settings, hooks, the bundle's parts, the licence and the week's changes are marked only as different: more or fewer is not better in itself.
What each says it does
Fluxmail
Read, search, draft, send, and organize email through Gmail, Outlook, and IMAP/SMTP mailboxes.
io.github.mrfentmen/postmark-mcp
Query the Postmark API: server info, templates, outbound messages.
How to run each
Fluxmail As a local MCP server: npm package
claude mcp add --env "FLUXMAIL_LICENSE_KEY=<YOUR_FLUXMAIL_LICENSE_KEY>" --env "GOOGLE_CLIENT_SECRET=<YOUR_GOOGLE_CLIENT_SECRET>" --transport stdio fluxmail -- npx -y fluxmail stdioRequires: FLUXMAIL_LICENSE_KEY (secret), GOOGLE_CLIENT_SECRET (secret)
io.github.mrfentmen/postmark-mcp As a local MCP server: npm package
claude mcp add --transport stdio postmark-mcp -- npx -y @mrfentmen/postmark-mcpCommands built only from what the marketplaces declare; the full set for every client is on each card.
Tools each declares
Neither one's marketplaces publish a list of tools, so there is nothing to compare.
Settings each asks for
The marketplaces of io.github.mrfentmen/postmark-mcp publish no settings it asks for, so we do not compare settings.
What it can do: Fluxmail · What it can do: io.github.mrfentmen/postmark-mcp · Compare two other plugins
Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Package data comes from the public npm registry (registry.npmjs.org). Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.