Unofficial Proton Mail server via Proton Mail Bridge: send, read, search and organize email over SMTP/IMAP, with a read-only mode.
Setup
Choose your client, copy the config, then fill in any required environment variables.
claude mcp add proton-mail --env PROTONMAIL_USERNAME='<PROTONMAIL_USERNAME>' --env PROTONMAIL_PASSWORD='<PROTONMAIL_PASSWORD>' --env IMAP_PASSWORD='<IMAP_PASSWORD>' -- npx -y proton-mail-mcp~/.codex/config.toml
[mcp_servers.proton-mail]
command = "npx"
args = ["-y", "proton-mail-mcp"]
env = { PROTONMAIL_USERNAME = "<PROTONMAIL_USERNAME>", PROTONMAIL_PASSWORD = "<PROTONMAIL_PASSWORD>", IMAP_PASSWORD = "<IMAP_PASSWORD>" }
# codex mcp add proton-mail --env PROTONMAIL_USERNAME='<PROTONMAIL_USERNAME>' --env PROTONMAIL_PASSWORD='<PROTONMAIL_PASSWORD>' --env IMAP_PASSWORD='<IMAP_PASSWORD>' -- npx -y proton-mail-mcp~/.cursor/mcp.json
{
"mcpServers": {
"proton-mail": {
"command": "npx",
"args": [
"-y",
"proton-mail-mcp"
],
"env": {
"PROTONMAIL_USERNAME": "<PROTONMAIL_USERNAME>",
"PROTONMAIL_PASSWORD": "<PROTONMAIL_PASSWORD>",
"IMAP_PASSWORD": "<IMAP_PASSWORD>"
}
}
}
}.vscode/mcp.json
{
"servers": {
"proton-mail": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"proton-mail-mcp"
],
"env": {
"PROTONMAIL_USERNAME": "<PROTONMAIL_USERNAME>",
"PROTONMAIL_PASSWORD": "<PROTONMAIL_PASSWORD>",
"IMAP_PASSWORD": "<IMAP_PASSWORD>"
}
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"proton-mail": {
"command": "npx",
"args": [
"-y",
"proton-mail-mcp"
],
"env": {
"PROTONMAIL_USERNAME": "<PROTONMAIL_USERNAME>",
"PROTONMAIL_PASSWORD": "<PROTONMAIL_PASSWORD>",
"IMAP_PASSWORD": "<IMAP_PASSWORD>"
}
}
}
}claude_desktop_config.json
{
"mcpServers": {
"proton-mail": {
"command": "npx",
"args": [
"-y",
"proton-mail-mcp"
],
"env": {
"PROTONMAIL_USERNAME": "<PROTONMAIL_USERNAME>",
"PROTONMAIL_PASSWORD": "<PROTONMAIL_PASSWORD>",
"IMAP_PASSWORD": "<IMAP_PASSWORD>"
}
}
}
}.trae/mcp.json
{
"mcpServers": {
"proton-mail": {
"command": "npx",
"args": [
"-y",
"proton-mail-mcp"
],
"env": {
"PROTONMAIL_USERNAME": "<PROTONMAIL_USERNAME>",
"PROTONMAIL_PASSWORD": "<PROTONMAIL_PASSWORD>",
"IMAP_PASSWORD": "<IMAP_PASSWORD>"
}
}
}
}Environment variables
PROTONMAIL_USERNAMEPROTONMAIL_PASSWORDIMAP_PASSWORD
Replace the placeholders with your own credentials and keep them out of version control.