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How to Write Prospecting Emails with DALL-E

DALL-E, the AI image generation tool developed by OpenAI, can transform your prospecting emails by making them visually striking and memorable. Instead of sending standard text emails that get lost in inboxes, you can create custom visuals that immediately capture your prospects' attention. By integrating bespoke images—illustrations of your value proposition, simplified infographics, or attention-grabbing visuals—you significantly boost your open and response rates. This tutorial guides you step by step through using DALL-E to design strategic visual elements that accompany and reinforce the message of your prospecting emails, while maintaining a professional and targeted approach.

Prerequisites

  • 1.Have an OpenAI account with access to DALL-E (version 3 recommended)
  • 2.Have identified your prospecting target and your value proposition
  • 3.Master the basics of professional email writing
  • 4.Have an email sending tool (Mailchimp, Lemlist, HubSpot, or similar)

Steps

1

Define Your Visual Prospecting Strategy

Before generating images, identify the precise role of the visual in your email. Do you want to illustrate a problem your prospect faces, show a before/after, create a personalized catch banner, or design a simplified infographic of your offer? Define the visual tone (corporate, creative, minimalist) based on your industry and target audience. List 2 to 3 visual concepts you want to test.

Tip: Minimalist and professional visuals work best in B2B, while more creative and colorful images suit B2C.
2

Create a Catch Image for the Email Header

Use DALL-E to generate a banner image that captures attention as soon as the email is opened. This image should reflect your value proposition at a glance. Opt for a horizontal format (16:9 or 3:1 ratio) suitable for email headers. Avoid overly busy images that slow down loading time.

Create a professional and clean banner for a B2B prospecting email. The image shows [YOUR_CONCEPT, e.g., a handshake between two professionals with growth charts in the background]. Modern corporate style, color palette [YOUR_BRAND_COLORS], horizontal format 1200x400 pixels, no text embedded in the image.

Tip: Explicitly ask for 'no text' in the prompt because DALL-E handles typography poorly. Add text afterward with Canva or Figma.
3

Design Visuals Illustrating the Prospect's Problem

Generate an image that visually represents your prospect's main pain point. This visual storytelling technique creates an immediate emotional connection. The prospect should recognize themselves in the illustrated situation. Use clear and universal visual metaphors rather than overly literal representations.

Professional illustration showing [YOUR_PROSPECTS_PROBLEM, e.g., a manager overwhelmed by piles of documents and screens displaying conflicting data], bright lighting but expressing frustration, modern and clean digital illustration style, soft colors with a [COLOR] dominance, no text.

Tip: Create a 'problem' version and a 'solution' version to build a mini visual story within your email.
4

Generate Visuals of Social Proof and Results

Create illustrations to accompany your key figures and testimonials. Rather than simply writing '+40% productivity', illustrate this transformation with an impactful visual. DALL-E can generate conceptual representations of success, stylized graphs, or scenes showing the positive result after using your solution.

Conceptual illustration showing a positive transformation in a company: [DESCRIBE_THE_RESULT, e.g., a smiling and organized team working efficiently in a modern and bright space, with positive performance indicators visible on screens]. Professional flat design style, bright and optimistic colors, square format 800x800, no text.

Tip: Use these result visuals just before your call to action to maximize emotional impact.
5

Assemble and Optimize the Complete Email with Visuals

Integrate your DALL-E visuals into your prospecting email following best practices: limit to 1 or 2 images maximum per email, compress them under 200 KB for fast loading, systematically add descriptive alt text, and ensure the email remains readable even without images (some email clients block them by default). Test display on mobile and desktop before sending.

Tip: Use TinyPNG or Squoosh to compress your DALL-E images without noticeable quality loss. Always include a plain text version of your email as a fallback.

Common mistakes to avoid

  • ✗Overloading the email with too many generated images, increasing the risk of landing in spam and slowing loading
  • ✗Using DALL-E images containing generated text (often illegible or with errors) instead of adding text separately with a design tool
  • ✗Neglecting alt text and text fallback, making the email incomprehensible when images are blocked by the email client
  • ✗Generating visuals that are too generic and do not reflect the specificity of your offer or your prospect's industry
  • ✗Forgetting to check the commercial usage rights of generated images according to OpenAI's terms of use

FAQ

Can DALL-E write the text of my prospecting emails?
No, DALL-E is exclusively an image generation tool. To write the text content of your emails, use a language model like ChatGPT or Claude. DALL-E comes in addition to create the visual elements that reinforce your written message.
Which DALL-E image format is most suitable for emails?
DALL-E generates images in PNG format. For emails, convert them to JPEG or WebP to reduce file size. Aim for a weight under 200 KB per image. Use a 16:9 ratio for banners and 1:1 for illustrations embedded in the body text.
Can I customize DALL-E visuals for each prospect?
Yes, it is even recommended for strategic accounts. You can customize your prompts by incorporating the prospect's industry, their brand colors, or company-specific elements. For mass prospecting, rather create visuals per segment or persona.

Related tutorials

How to write prospecting emails with ChatGPTHow to create marketing visuals with DALL-EHow to write prospecting emails with Claude

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  2. Paste it into ChatGPT, Claude or your favorite AI assistant.
  3. Replace the bracketed variables with your details, then refine the result.

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