Mailgo Cold Mail Marketing
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AI-powered cold email campaign management through Model Context Protocol (MCP).
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- leadsnavideveloper
- Categories
- Productivity
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Setup
Install Mailgo Cold Mail Marketing in your MCP client (Claude Desktop, Cursor, Windsurf, and others).
Repository: https://github.com/leadsnavideveloper/mailgo-cold-mail-marketing
Follow the installation instructions in the repository README, then restart your MCP client.
AI-powered cold email campaign management through Model Context Protocol (MCP).
Complete cold email campaign plugin for Mailgo. One plugin handles the entire outreach pipeline:
- Verifyrecipient emails (async submit + poll)
- Claima free pre-warmed mailbox (90+ sender score, 60 days)
- Optimizeemail content (spam triggers, HTML cleanup, deliverability)
- Sendcampaigns (content upload, lead import, activation)
- Managecampaign lifecycle (activate, pause, delete, list)
- Reportcampaign statistics (overview, per-round, daily progress)
# Add the marketplace /plugin marketplace add leadsnaviDeveloper/mailgo-cold-mail-marketing # Install the plugin /plugin install mailgo-campaign-suite@mailgo-plugins
After installation, set your Mailgo API key as an environment variable (seeSecurity & Credentialsbelow), then just ask Claude to help you send cold emails.
/add-plugin leadsnaviDeveloper/mailgo-cold-mail-marketing
See.cursor-plugin/plugin.jsonfor details.
git clone https://github.com/leadsnaviDeveloper/mailgo-cold-mail-marketing.git ~/.codex/mailgo-campaign-suite mkdir -p ~/.agents/skills ln -s ~/.codex/mailgo-campaign-suite/skills ~/.agents/skills/mailgo-campaign-suite
See.codex/INSTALL.mdfor full instructions.
{ "plugin": ["mailgo-campaign-suite@git+https://github.com/leadsnaviDeveloper/mailgo-cold-mail-marketing.git"] }
See.opencode/INSTALL.mdfor full instructions.
gemini extensions install https://github.com/leadsnaviDeveloper/mailgo-cold-mail-marketing
This plugin is published byLeadsNavi, the company behind the Mailgo cold email platform.
- Product:https://app.mailgo.ai
- Publisher website:https://www.leadsnavi.com
- Python 3.7+
- MAILGO_API_KEYenvironment variable (OpenAPI Key from Mailgo)
- No third-party dependencies (stdlib only:urllib,json,csv,ssl)
- Optional:openpyxlfor.xlsx file support (pip install openpyxl)
This skill requires aMailgo OpenAPI Key(MAILGO_API_KEY) to operate. Please read before using:
MAILGO_API_KEYis your Mailgo account credential. Keep it secure and never share it publicly.
This skill sends emails to recipient lists you provide. You are responsible for ensuring your campaigns comply with applicable laws and platform terms, including:
- CAN-SPAM Act(US) — include a physical address and honor opt-out requests
- GDPR(EU) — ensure you have a lawful basis for contacting recipients
- Mailgo Terms of Service—https://app.mailgo.ai
The skill's built-in email optimizer adds a soft opt-out line to every email by default.
mailgo-cold-mail-marketing/ ├── .claude-plugin/ # Claude Code plugin │ ├── plugin.json │ └── marketplace.json ├── .cursor-plugin/ # Cursor IDE plugin │ └── plugin.json ├── .codex/ # GitHub Codex support │ └── INSTALL.md ├── .opencode/ # OpenCode support │ └── INSTALL.md ├── skills/ │ └── mailgo-campaign-suite/ │ └── SKILL.md # Main skill instructions ├── scripts/ │ ├── verify_emails.py # Step 1: Email verification │ ├── claim_free_mailbox.py # Step 2: Free mailbox claiming │ ├── run_campaign.py # Step 4: Campaign creation & activation │ ├── campaign_control.py # Step 5: Lifecycle management │ └── campaign_report.py # Step 6: Statistics & reporting ├── resources/ │ ├── spam-triggers.md # Step 3: Spam trigger replacement table │ └── industry-templates.md # Step 3: Industry-specific email templates ├── gemini-extension.json # Gemini CLI extension ├── GEMINI.md # Gemini context pointer ├── package.json # Package metadata (OpenCode entry) └── README.md # This file
# 1. Set up authentication export MAILGO_API_KEY="your-api-key" # 2. Verify emails python3 scripts/verify_emails.py alice@example.com bob@gmail.com # 3. Claim free mailbox python3 scripts/claim_free_mailbox.py # 4. Create and send campaign python3 scripts/run_campaign.py \ --sender "claimed@mailbox.com" \ --subject "Quick question" \ --body "<html><body><p>Hi</p></body></html>" \ --recipients "alice@example.com" \ --campaign-name "My Campaign" # 5. Check status python3 scripts/campaign_control.py list python3 scripts/campaign_report.py overview <campaignId>
This suite consolidates functionality from:
- mailgo-auth-setup— authentication guidance (Step 0)
- mailgo-email-verifier— email verification (Step 1)
- mailgo-email-optimizer— content optimization rules (Step 3)
- mailgo-campaign— campaign creation (Step 4)
- mailgo-campaign-control— lifecycle management (Step 5)
- mailgo-campaign-report— statistics (Step 6)
Those individual skills remain available for standalone use. This suite provides the same capabilities in a single, self-contained package.
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