Titan Email MCP vs Proton Mail MCP
A side-by-side look at the Titan Email MCP and Proton Mail MCP MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
T
Titan Email MCPCommunication · Local subprocess (stdio)MCP server for Titan Email (IMAP/SMTP), tested and confirmed with GoDaddy mailboxes.53GoodAuth: otherVerdict: choose Titan Email MCP for communication work as a local process; choose Proton Mail MCP for communication as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
TChoose Titan Email MCP when
- You need dedicated capabilities in the Communication domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: other.
- You have the keys it needs:
TITAN_EMAIL, TITAN_PASSWORD, TITAN_PROVIDER, TITAN_FROM_NAME, TITAN_ALLOW_SEND, TITAN_IMAP_HOST, TITAN_IMAP_PORT, TITAN_SMTP_HOST. - You want tools like
test_connection, list_folders, list_emails.
Choose Proton Mail MCP when
- You need dedicated capabilities in the Communication domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: other.
- You have the keys it needs:
PROTONMAIL_USERNAME, PROTONMAIL_PASSWORD, READONLY, ALLOW_FILE_DOWNLOAD_DIR, ALLOW_EMPTY_FOLDER, RESTRICT_OUTBOUND_TO_SELF. - You want tools like
send_email, reply_email, reply_all_email.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | T Titan Email MCP | |
|---|---|---|
| Category | Communication | Communication |
| Quality signal | 53/100 · Good | 63/100 · Good |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | other | other |
| Pricing | Free | Free |
| Required env vars | TITAN_EMAILTITAN_PASSWORDTITAN_PROVIDERTITAN_FROM_NAMETITAN_ALLOW_SENDTITAN_IMAP_HOSTTITAN_IMAP_PORTTITAN_SMTP_HOST | PROTONMAIL_USERNAMEPROTONMAIL_PASSWORDREADONLYALLOW_FILE_DOWNLOAD_DIRALLOW_EMPTY_FOLDERRESTRICT_OUTBOUND_TO_SELF |
| Verified owner | Community listing | Community listing |
| GitHub stars | 0 | 6 |
| Directory activity | 0 views 0 installs 0 upvotes | 1 views 0 installs 0 upvotes |
| Tools | 10 | 32 |
| Full listing | View Titan Email MCP | View Proton Mail MCP |
Tools & capabilities
Titan Email MCP tools 10
test_connectionVerifies IMAP + SMTP login without touching any mail. **Run this first.list_foldersFolders with message / unread counts.list_emailsLatest emails in a folder (optionally unread only).search_emailsFilter by from, to, subject, text, date range, unread.read_emailFull message by UID: headers, text body, attachment list.send_emailSend new mail (copy saved to Sent). Disabled when `TITAN_ALLOW_SEND=false`.reply_emailThreaded reply / reply-all, or save the reply as a draft instead of sending.save_draftSave to Drafts without sending — always available, even in read-only mode.move_emailMove messages to another folder (Archive, Trash, etc.).set_flagsMark read/unread, flag/unflag.
Proton Mail MCP tools 32
send_emailSend an email using Proton Mail SMTP.reply_emailReply to a message with proper threading headers (In-Reply-To, References). Includes the quoted original message with attribution by default.reply_all_emailReply to all original recipients (sender + TO + CC), excluding the authenticated user. Same threading + quoting semantics as `reply_email`. Use this instead of `reply_email` + `replyAll: true` for clarity. Self-exclusion covers the whole recipient set including the primary `To`: replying-all to a m…forward_emailForward a message to new recipients. Original attachments are carried forward by default. Unlike reply, a forward does **not** set `In-Reply-To`/`References` — it starts its own conversation and leaves the original message's `\Answered` flag untouched.save_draftSave an email as a draft without sending it. The draft is placed in the user's `\Drafts` special-use folder (resolved at runtime; falls back to literal `Drafts` if no annotation). Returns the draft UID when available.list_foldersList all mailbox folders with message and unread counts. No parameters. Counts come from a cached IMAP STATUS that Proton Bridge can serve stale — for an exact count (e.g. before deleting or emptying a folder), use `count_messages` or `folder_stats`, which query the live mailbox. The output include…list_messagesList recent messages from a folder. Supports UID-based pagination.read_messageRead a specific message by UID. Returns full headers, body, and attachment metadata. Prefers plain text; strips HTML tags from HTML-only messages. Body-part selection skips parts marked `Content-Disposition: attachment`, so a `text/plain` attachment sitting next to an HTML body is never returned as…list_attachmentsList attachment metadata (part numbers, filenames, types, sizes) for a message without downloading the body. Composes with `download_attachment` for bulk extraction. The reported size is the **decoded** file size (roughly what you get on save), **estimated** from the IMAP-encoded octet count — base…download_attachmentDownload an attachment by MIME part number. Use `list_attachments` or `read_message` first to see available parts. By default returns base64-encoded content inline. Bad part numbers produce an actionable error listing known parts.search_messagesSearch messages by various criteria. Date filters use IMAP semantics: `since` is inclusive, `before` is exclusive.get_threadGet all messages in a conversation thread by walking In-Reply-To and References headers. Returns messages sorted chronologically (oldest first).- +20 more on the listing page
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
Titan Email MCP
{
"mcpServers": {
"titan-email-mcp": {
"command": "npx",
"args": [
"-y",
"titan-email-mcp"
],
"env": {
"TITAN_EMAIL": "YOUR_TITAN_EMAIL_HERE",
"TITAN_PASSWORD": "YOUR_TITAN_PASSWORD_HERE",
"TITAN_PROVIDER": "YOUR_TITAN_PROVIDER_HERE",
"TITAN_FROM_NAME": "YOUR_TITAN_FROM_NAME_HERE",
"TITAN_ALLOW_SEND": "YOUR_TITAN_ALLOW_SEND_HERE",
"TITAN_IMAP_HOST": "YOUR_TITAN_IMAP_HOST_HERE",
"TITAN_IMAP_PORT": "YOUR_TITAN_IMAP_PORT_HERE",
"TITAN_SMTP_HOST": "YOUR_TITAN_SMTP_HOST_HERE"
}
}
}
}
Proton Mail MCP
{
"mcpServers": {
"sethbang-proton-mail-mcp": {
"command": "npx",
"args": [
"-y",
"proton-mail-mcp"
],
"env": {
"PROTONMAIL_USERNAME": "YOUR_PROTONMAIL_USERNAME_HERE",
"PROTONMAIL_PASSWORD": "YOUR_PROTONMAIL_PASSWORD_HERE",
"READONLY": "YOUR_READONLY_HERE",
"ALLOW_FILE_DOWNLOAD_DIR": "YOUR_ALLOW_FILE_DOWNLOAD_DIR_HERE",
"ALLOW_EMPTY_FOLDER": "YOUR_ALLOW_EMPTY_FOLDER_HERE",
"RESTRICT_OUTBOUND_TO_SELF": "YOUR_RESTRICT_OUTBOUND_TO_SELF_HERE"
}
}
}
}
Frequently asked questions
Titan Email MCP is categorized under Communication and uses a local stdio subprocess. Proton Mail MCP belongs to Communication and uses a local stdio subprocess. Pick Titan Email MCP for communication work and Proton Mail MCP for communication.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.
Titan Email MCP is listed as free. Auth: other. Proton Mail MCP is listed as free. Auth: other. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add titan-email-mcp and sethbang-proton-mail-mcp as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Titan Email MCP has a quality signal of 53/100 (Good) with 0 views, 0 installs and 0 GitHub stars. Proton Mail MCP has 63/100 (Good) with 1 views, 0 installs and 6 GitHub stars.