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Email Guru
Email Guru

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How I Used ChatGPT to Send Emails with Mailgun in 3 Minutes

#programming #python #ai #chatgpt

Sending emails usually means boilerplate, authentication, domain setup, and yet it can still take forever to get right. But with the Email API Integration Assistant in ChatGPT, pairing with Mailgun went from project to proof-of-concept in record time.

⏱️ Minute 1: Set up Mailgun & ChatGPT integration
I already had a Mailgun account, my API key, and domain ready to roll. In ChatGPT, I triggered the Email API Integration Assistant, which guided me through installing the Mailgun SDK, along with environment variables — no digging through docs needed.

✍️ Minute 2: Write the code
In a ChatGPT session I said:

“Generate code in Python to send an email with subject, recipient, and body.”

In seconds, I had a fully working snippet:

from mailgun import MailgunClient

mg = MailgunClient(api_key=…)
mg.send_email(
    from_addr="no‑reply@myapp.com",
    to="user@example.com",
    subject="Welcome to MyApp!",
    text="Hey there! Welcome aboard."
)
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Behind the scenes, ChatGPT handled SPF/DKIM setup hints and error handling suggestions too—no manual research required. That alone was a massive time saver.

⚙️ Minute 3: Refine with conversational code
Then I asked the assistant to customize the flow:

Pull in user data as a dict.

Generate a personalized message:
“Congrats [name] on earning [points]!”

Use the template in the Mailgun call.

By the end, I had production‑ready code:

user = {"name":"Alex","email":"alex@example.com","points":120}
body = f"Congrats {user['name']} on earning {user['points']} points!"
mg.send_email(
    from_addr="no‑reply@myapp.com",
    to=user['email'],
    subject="🎉 You earned points!",
    text=body
)
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Done — all within a 3‑min session 🌟

Why this works so well

  • No‑code assistant prompts: The Email API Integration Assistant walks you through setup and code generation steps.
  • Contextual code suggestions: It adapts sample code to your app structure and user data.
  • Built‑in best practices: ChatGPT reminds you to configure SPF/DKIM auth with Mailgun, ensuring better deliverability.
  • Fast iteration: In one chat session, I went from setup ➝ code ➝ customization without context switching.

TL;DR
Step Time What happened
Setup 1 min Added Mailgun key + SDK via ChatGPT prompts
Basic code 1 min Auto-generated send_email snippet with error checks
Customize 1 min Templated code for user data & personalized email

All in all, under 3 minutes to a working Mailgun-powered email flow. The Email API Integration Assistant is an enormous productivity boost if you're integrating transactional email in any app.

Curious to try it yourself? Here's the link.

Happy coding 🚀

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