A side-by-side look at the Titan Email MCP and Mailbox MCP MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Titan Email MCP for communication work as a local process; choose Mailbox MCP for communication as a local process. You can also run both side by side in one mcpServers block.
TITAN_EMAIL, TITAN_PASSWORD, TITAN_PROVIDER, TITAN_FROM_NAME, TITAN_ALLOW_SEND, TITAN_IMAP_HOST, TITAN_IMAP_PORT, TITAN_SMTP_HOST.test_connection, list_folders, list_emails.MAILBOX_MCP_PASSPHRASE, MAILBOX_MCP_CONFIG_DIR, MAILBOX_MCP_PROFILE.list_accounts, authenticate, reauth.Rows where the two servers differ are marked.
| Spec | T Titan Email MCP | |
|---|---|---|
| Category | Communication | Communication |
| Quality signal | 53/100 · Good | 59/100 · Good |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | other | Not declared |
| Pricing | Free | Not declared |
| Required env vars | TITAN_EMAILTITAN_PASSWORDTITAN_PROVIDERTITAN_FROM_NAMETITAN_ALLOW_SENDTITAN_IMAP_HOSTTITAN_IMAP_PORTTITAN_SMTP_HOST | MAILBOX_MCP_PASSPHRASEMAILBOX_MCP_CONFIG_DIRMAILBOX_MCP_PROFILE |
| Verified owner | Community listing | Community listing |
| GitHub stars | 0 | 10 |
| Directory activity | 0 views 0 installs 0 upvotes | 2 views 0 installs 0 upvotes |
| Tools | 10 | 49 |
| Full listing | View Titan Email MCP | View Mailbox MCP |
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.list_accountsList configured accountsauthenticateAdd a new accountreauthRe-run OAuth for an existing Gmail account (use when refresh token expires with `invalid_grant`)remove_accountRemove an accountsearch_emailsSearch messages (optional `folder` to scope the search)multi_account_searchRun the same query across every configured account in parallelread_emailRead a messageread_threadRead a conversation thread (Gmail + JMAP)send_emailSend a new email (supports `from`, `attachments`; new recipients need `confirm_new_recipient`)reply_emailReply to a message (supports `from`, `attachments`; extra cc/bcc to new addresses need `confirm_new_recipient`)forward_emailForward a message (supports `from`, `attachments`; other domains need `confirm_external_forward`)create_draftCreate a draft (supports reply drafts via `in_reply_to`, plus `from`, `attachments`)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.
{
"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"
}
}
}
}
{
"mcpServers": {
"mailbox-mcp-2": {
"command": "npx",
"args": [
"-y",
"mailbox-mcp"
],
"env": {
"MAILBOX_MCP_PASSPHRASE": "YOUR_MAILBOX_MCP_PASSPHRASE_HERE",
"MAILBOX_MCP_CONFIG_DIR": "YOUR_MAILBOX_MCP_CONFIG_DIR_HERE",
"MAILBOX_MCP_PROFILE": "YOUR_MAILBOX_MCP_PROFILE_HERE"
}
}
}
}