Resend vs io.github.chrischall/office-outlook-mcp
Resend is an MCP server published by resend. Marketplaces we read that list it: 1 (Docker MCP Catalog). io.github.chrischall/office-outlook-mcp is an MCP server published by chrischall. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-24. 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 |  Resend |  io.github.chrischall/office-outlook-mcp |
|---|---|---|
| Docker MCP Catalog | Listed Version: sha256:2a786579214e Forks (GitHub): 91 Pulls (Docker Hub): 22 117 Stars (Docker Hub): 5 Stars (GitHub): 576 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 0.7.1 Downloads/month (npm): 3 378 Downloads/week (npm): 515 Forks (GitHub): 0 Stars (GitHub): 0 Not marked · First seen |
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 | Resend | io.github.chrischall/office-outlook-mcp |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | 576 (better) | 0 (worse) |
| Pulls (Docker Hub) (differs) | 22 117 | No figure on Docker Hub |
| Forks (GitHub) (differs) | 91 (better) | 0 (worse) |
| Last release (differs) | Not published | 2026-10-21 |
| Where it runs (differs) | On your machine (mcp/resend) | On your machine (@chrischall/office-outlook-mcp) |
| Transport | stdio | stdio |
| Tools it declares (differs) | 1 | Not published |
| Environment variables it asks for (differs) | 3, secrets among them: 1 | 14, secrets among them: 2 |
| Licence | MIT | MIT |
| Repository (differs) | github.com/resend/mcp-send-email | github.com/chrischall/office-outlook-mcp |
| Changes in the last 7 days (differs) | 0 | 3 |
| First seen | 2026-10-11 | 2026-10-11 |
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
Resend
The official MCP server to send emails and interact with Resend.
io.github.chrischall/office-outlook-mcp
Outlook / Microsoft 365 for Claude — triage mail, reply, answer invites and book meetings, confirmed
How to run each
Resend As a local MCP server: Docker image
claude mcp add --env "RESEND_API_KEY=<YOUR_RESEND_API_KEY>" --transport stdio resend -- docker run -i --rm -e RESEND_API_KEY mcp/resendRequires: RESEND_API_KEY (secret)
io.github.chrischall/office-outlook-mcp As a local MCP server: npm package
claude mcp add --env "MCP_CONFIRM_SECRET=<YOUR_MCP_CONFIRM_SECRET>" --env "OUTLOOK_ACCESS_TOKEN=<YOUR_OUTLOOK_ACCESS_TOKEN>" --transport stdio office-outlook-mcp -- npx -y @chrischall/office-outlook-mcpRequires: MCP_CONFIRM_SECRET (secret), OUTLOOK_ACCESS_TOKEN (secret)
Commands built only from what the marketplaces declare; the full set for every client is on each card.
Tools each declares
The marketplaces of io.github.chrischall/office-outlook-mcp publish no list of tools, so we do not compare tools.
Settings each asks for
Only Resend asks for
REPLY_TO_EMAIL_ADDRESSESRESEND_API_KEY (secret)SENDER_EMAIL_ADDRESS
Only io.github.chrischall/office-outlook-mcp asks for
FETCHPROXY_IDENTITY_DIRFETCHPROXY_WS_HOSTMCP_CONFIRM_ELICITATIONMCP_CONFIRM_MODEMCP_CONFIRM_SECRET (secret)MCP_CONFIRM_TTL_SECONDSOUTLOOK_ACCESS_TOKEN (secret)OUTLOOK_API_BASEOUTLOOK_CAPTURE_TIMEOUTOUTLOOK_DISABLE_FETCHPROXYOUTLOOK_OUTPUT_DIROUTLOOK_TOKEN_CACHE
Show the remaining 2
OUTLOOK_TOKEN_FILEOUTLOOK_WS_PORT
Settings as each marketplace publishes them. Asking for fewer is not better in itself.
What it can do: Resend · What it can do: io.github.chrischall/office-outlook-mcp · Compare two other plugins
Data comes from the Docker MCP Catalog (desktop.docker.com/mcp/catalog) and Docker Hub. Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Data comes from public marketplace files in GitHub repositories of their authors. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.