send-email-mailjet

Send email via Mailjet skill

Skill for sending emails with attachments using Mailjet API.

Installation

Gemini

npx skills add https://github.com/funivan/send-email-mailjet-skill/ --skill send-email-mailjet

Manual installation

git clone https://github.com/funivan/send-email-mailjet-skill/ --depth 1
cd send-email-mailjet-skill
cp -r skill/send-email-mailjet ~/.gemini/skills/

Claude Code

Add the marketplace and install the plugin:

/plugin marketplace add funivan/send-email-mailjet-skill
/plugin install send-email-mailjet@send-email-mailjet-marketplace

After installation, Claude will automatically detect when you want to send an email and use the skill. You can also invoke it directly with /send-email-mailjet:send-email.

Configuration

Mailjet is a reliable email delivery service with a REST API. This skill uses Mailjet to send transactional emails with attachments programmatically.

Go to Mailjet and obtain your API keys.

You can set all env variables in the system environment or create a .env file in the project root with the following variables:

# required for Mailjet API authentication
MJ_APIKEY_PUBLIC=your_public_key
MJ_APIKEY_PRIVATE=your_private_key

Now you can call the skill with parameters like sender, recipient, subject, body, and attachments.

[!TIP] Send email to [email protected] from [email protected] with a joke and funny subject.

You can also set default env variables for sender, recipient, subject and others:

[email protected]
[email protected]
MJ_SUBJECT=Hello from AI

And specify just body in prompt:

[!TIP] Send email with body "This is a test email"

Attaching files defined in env

You can pre-configure file attachments using sequential MJ_FILES_N variables:

MJ_FILES_1=/path/to/file1.pdf
MJ_FILES_2=/path/to/file2.epub
MJ_FILES_3=/path/to/file3.txt

Important: Gaps in numbering stop the sequence. If MJ_FILES_2 is missing, only MJ_FILES_1 will be used.

Files will be attached in the order of their numbering in all email sends, unless overridden by command-line arguments.

Development

Running tests locally

From the repository root:

# Run all tests
python -m unittest discover -s tests -p "test_*.py" -v

# Run with coverage (install coverage first: pip install coverage)
coverage run --source=skill/send-email-mailjet/scripts -m unittest discover -s tests -p "test_*.py" -v
coverage report

Optional: create a virtual environment before installing or running:

python3 -m venv .venv
source .venv/bin/activate   # On Windows: .venv\Scripts\activate
pip install coverage
# then run the coverage commands above