Cold emailing remains the most underestimated networking lever in 2026. While everyone else fights for 30 likes on LinkedIn, a short, well-targeted email to a working banker, PM, or founder unlocks internships, references, and non-public information. But a good cold email is precise, short, and anti-cliché — nothing like the « Dear Sir, I am writing to respectfully solicit your invaluable assistance » that the majority sends.

This guide is the method used by the Vocacia mentor pool — Goldman/Lazard bankers, McKinsey/BCG consultants, Google/Mistral PMs — who reply to the 8-12 % of cold emails they receive. You'll find: the structure of a cold email that works, 12 copy-paste templates by use case (alumni, recruiter, mentor, founder, journalist, follow-up), how to find the right addresses, the 5 mistakes that eliminate 80 % of messages, and the follow-up strategy that converts.

TL;DR — the 60-second version

A good cold email fits in 5 sentences max, structured: (1) who I am (1 sentence), (2) why I'm writing to YOU specifically (1-2 sentences with a precise reference), (3) what I'm proposing or asking (1 concrete sentence), (4) what makes it easy to say yes (1 sentence — e.g., « 15 minutes on Zoom at your convenience »). Typical reply rate: 5-15 % with a good email vs. 0-2 % with a generic one. On 50 targeted emails = 3-7 positive replies = 1-3 interviews = 1 opportunity.

The structure that works

Subject: 6-8 words, no caps, no emojis

The subject decides whether the email gets opened. 70 % of unopened emails are killed by the subject, not the body.

Body: 5 sentences max, ABCDE structure

  1. A — Identity (1 sentence): who I am (school, level, niche).
  2. B — Connection (1-2 sentences): why YOU — precise reference to a project, article, deal, or public statement.
  3. C — Ask (1 sentence): what I want concretely (15 min call, advice on X, feedback on my CV).
  4. D — Ease (1 sentence): what makes saying yes easy (Zoom, phone, asynchronous, 3 proposed slots).
  5. E — Short signature (1 line): first name + LinkedIn URL or portfolio.

The 30-second test: the recipient must be able to read and understand the message in 30 seconds. Longer than that, you lose 60 % of readers.

12 copy-paste templates that work

Template 1 — Student → School alumni at target firm

Use case: you want to talk to an HEC alumna at Lazard. Typical reply rate: 30-50 %.

Subject: HEC ’25 student, 15 min on Lazard?

Hi [First name],

I'm [First name Last name], M1 finance student at HEC, currently applying for the 2025 M&A summer internship.

I saw your profile on LinkedIn — your move from Lazard to [current firm] is particularly interesting because I'm aiming for a similar 5-year trajectory.

Could you spare 15 minutes next week for a quick call? I'd love to understand what made you choose Industries vs. generalist M&A.

Available Wednesday morning or Thursday 5pm — your convenience.

Best regards,
[First name Last name]
[LinkedIn URL]

Template 2 — Student → Working banker/consultant (info call)

Use case: you want to talk to a non-alumni M&A associate. Typical reply rate: 8-15 %.

Subject: Quick question about the [X] deal

Hi [First name],

I'm [First name Last name], M1 finance student at HEC, applying for 2025 M&A internships.

I analyzed the [X] divestiture you closed in March — the complexity of the industrial carve-out caught my attention. I'd love to understand how your team managed vendor DD / legal coordination within 4 months.

Could you spare 15 minutes on Zoom next week to share your experience?

Available all week, your convenience.

Best regards,
[First name Last name] · [LinkedIn]

Template 3 — Student → Recruiter (after seeing a posting)

Use case: you're applying to a public posting and want to complement it with an email. Typical reply rate: 20-30 %.

Subject: M&A internship application — Léa Martin (HEC)

Hi [First name],

I just submitted my application for the M&A Industries internship (posting reference #1234). I wanted to take 30 seconds to introduce myself directly.

What specifically interests me about Lazard Industries: the focus on industrial mid-caps that I studied during my 6 months at [previous firm] on the [Y] divestiture.

Available for an interview from June 1, and happy to answer any questions about my profile.

Best regards,
[First name Last name]
[LinkedIn] · [CV attached]

Template 4 — Student → Recruiter (cold, no posting)

Use case: you're writing to a recruiter without a public posting to flag your interest. Typical reply rate: 5-10 %.

Subject: M&A profile for Industries — available June 2025

Hi [First name],

I'm Léa Martin, M1 finance student at HEC, coming out of a 6-month M&A internship at [Lazard / other bank, on a 350M€ industrial mid-cap deal].

I know you don't have a public internship posting at the moment, but I wanted to flag my availability for a 6-month internship starting June 2025, focused on Industries.

CV attached. Available for a quick call next week if you see a fit.

Best regards,
Léa Martin · [LinkedIn]

Template 5 — Student → Scaleup founder (custom role)

Use case: you want to work at a scaleup that has no formal internship program. Typical reply rate: 10-20 % (founders often reply themselves).

Subject: Idea to solve [problem of your company]

Hi [First name],

I've been using [product] for 18 months and I noticed [specific observation about the product]. I mocked a solution on 3 slides — attached.

I'm [First name Last name], M2 product management at HEC + 6 months product at [company], and I'd love to work on this for 4-6 months as an intern / freelancer / adapted contract.

Happy to discuss if the idea resonates. If not, I've enjoyed putting together the 3 slides — just your honest 5-minute feedback would already be valuable.

Best regards,
[First name Last name] · [LinkedIn] · [Slides PDF attached]

Note: this template requires real upfront work (read the product, identify a problem, mock a solution). But that's what differentiates it — founders say yes ~20 % of the time when the email contains concrete work.

Template 6 — Junior → Working senior (mentor request)

Use case: ask a senior to be your informal mentor. Typical reply rate: 15-25 %.

Subject: Quick advice request — HEC M1 student

Hi [First name],

I'm [First name Last name], M1 finance student at HEC. I'm writing because your background [specific detail: Goldman → Fund X → what you do now] is very close to what I'm aiming for in 5-7 years.

I don't have a specific ask today. I just wanted to know if you'd be open to a 30-minute call in September to share what shaped your career choices.

If yes, I'll propose 3 slots. If no, no worries — I'll keep following your work.

Best regards,
[First name Last name] · [LinkedIn]

Note: the best mentors say yes because this template is non-transactional (not a hidden internship request) and gives an elegant exit (« if no, no worries »).

Template 7 — Student → CEO (cold, clear niche)

Use case: you want to write to a mid-cap CEO. Typical reply rate: 5-10 % (huge variance based on personalization depth).

Subject: Re your statement on [X] in [publication]

Hi [First name],

I read your interview in [publication] in March on [precise topic] — your point on [specific angle] made me reconsider how I viewed [field].

I'm an M2 finance student at HEC, working on a thesis that touches directly on this point. I'd be honored to ask you 2 precise questions in 15 minutes — or even asynchronously by email if more practical.

Available at your convenience.

Best regards,
[First name Last name] · [LinkedIn]

Template 8 — After a networking event

Use case: you met someone at a forum / cocktail and want to follow up within 48h. Typical reply rate: 50-70 % (direct personal context).

Subject: Following up from the HEC forum

Hi [First name],

Great talking yesterday at the HEC forum. You mentioned [specific detail from your conversation: a project, an idea, a book] — that resonates particularly because [why you].

I'd love to dig into the topic with you. Could you spare 20 minutes on Zoom in the next 2 weeks?

I propose Tuesday 3pm or Thursday 6pm — your convenience.

Best regards,
[First name Last name]

Template 9 — Follow-up after silence (D+10)

Use case: your first email got no reply after 7-10 working days. Typical reply rate: 5-10 % (the follow-up often doubles the total reply rate).

Subject: Re: [original subject]

Hi [First name],

Sending a quick follow-up — I imagine you're very busy.

For context, I'm [First name Last name], and I wrote to you on [date] about [topic in 1 line].

If you don't have time for a call, could you just tell me in one sentence whether [ask] is possible or not? It would help me know whether to explore other paths.

Best regards,
[First name Last name]

Template 10 — Reach out after rejection

Use case: you were rejected but want to maintain contact for a future opportunity. Typical reply rate: 30-40 % (recruiters value the maturity of this approach).

Subject: Thanks for your time — and 1 question

Hi [First name],

Thanks for the feedback on my application for the M&A Industries internship. I'm disappointed of course, but I understand.

To not repeat the same mistake, could you spare 5 minutes to tell me what tipped the balance toward the other candidates? I want to improve for my next applications.

And I remain very interested in Lazard for 2026 — so if a longer-term opportunity comes up, I'd be grateful if you could mention me internally.

Best regards,
[First name Last name]

Template 11 — Cold to a journalist / podcaster

Use case: you want to be cited or featured in a professional content. Typical reply rate: 10-20 %.

Subject: Re your episode of [date] — a complementary angle

Hi [First name],

Your episode on [topic] stuck with me — especially your point on [specific detail].

I'm [First name Last name], and I've been working for 18 months on a complementary angle: [your work / side project / thesis in 1 precise sentence]. I have data that could enrich a future episode.

If interested, I can send a 2-page brief in 5 minutes. If not, no worries — and bravo again on your work.

Best regards,
[First name Last name] · [LinkedIn / portfolio]

Template 12 — Introduction request

Use case: you want a known contact to introduce you to someone in their network. Typical reply rate: 60-80 % (low friction for the introducer).

Subject: Intro request — [First name Last name re: X]

Hi [First name],

Small favor if you're comfortable: could you introduce me to [First name Last name of target person]? You worked together at [shared firm].

To make the intro easy, here are 2 lines you can forward as-is:

« [First name Last name] is an M2 finance student at HEC, coming out of a 6-month M&A internship at [previous firm]. They wanted to ask you 2 questions about your Industries team — low friction, 15 minutes on Zoom at your convenience. »

If you'd rather not make the intro, no problem.

Best regards,
[First name Last name]

How to find the right email addresses

Legitimate tools (recommended)

Manual method (free)

If the person isn't in databases: guess the company's email pattern (visible from other employees via Apollo / Hunter). Common patterns: [email protected], [email protected], [email protected]. Verify with the « Verify Email » service of Apollo / Hunter before sending.

Pitfalls to avoid

The 5 mistakes that eliminate 80 % of cold emails

  1. Email too long. > 150 words = read-skip. Most students send 300-400 words. Cut to 100-150.
  2. Vague ask. « If you have time... » « I'd love to chat... » — recipient doesn't know what's being asked. Be precise: « 15 minutes on Zoom Tuesday 3pm or Thursday 6pm ».
  3. No personal reference. « I admire your career » with no detail = copy-paste signal. Cite a specific project, article, public statement.
  4. Wrong first name or company. Lethal. Triple-check before sending.
  5. No clear signature. No LinkedIn URL = no way to verify who you are = distrust.

The follow-up strategy that converts

Follow-up timing

Target volume

For a student in internship search:

Tracking and learning

Keep a simple Google Sheet: email sent / subject / reference / reply / outcome. After 30-50 emails, you identify the patterns that work (subject lines, structure, references). Iterate over 3-4 cycles. The 50th email has a 2-3x reply rate vs. the 5th.

FAQ — common questions

How many cold emails to land an internship?

Variable by sector. In top-tier finance/consulting: 50-100 targeted cold emails over 3 months for 5-10 interviews and 1-2 offers. In tech/startup: 30-50 for 5-8 interviews. In NGO / non-profit: 10-20 often suffice (fewer candidates).

French or English?

Depends on your recipient. Person based in France, French school/firm: French. Person at an international firm: English (signal of bilingual capability, more universal). Person in a non-French-speaking country: English.

Are cold emails legal?

Yes, in B2B (business to business, or professional applications). GDPR allows unsolicited emails as long as they are (1) personalized (no mass-mailing), (2) relevant to the recipient, (3) with clear opt-out (your signature suffices). Not legal: automated mass sending to private individuals.

Should I attach my CV in the first email?

Yes, if you're applying to a specific posting (Templates 3, 4). No, if you're just asking for an info call (Templates 1, 2, 5, 6). Cold attachments lower reply rate by 20 % because they signal an application instead of a conversation.

Can AI write my cold emails?

For structure and grammar, yes. For the personal connection content, no — that specific detail to your recipient is what makes the difference. Workflow: ChatGPT/Claude for skeleton, you personalize the connection. See our ChatGPT CV guide and best AI tools for job seekers for the AI + human workflow.

What if the person never replies, even after 2 follow-ups?

Accept and move on. On 100 cold emails, 70-90 don't reply — that's normal. The 10-30 who reply are worth the work. If a specific person is crucial, reconnect 6 months later with a new context (article published, shared project, event). Avoid any pressure signal.

Can I say « I also wrote to your colleague » to signal scarcity?

No. Artificial pressure signal (aggressive B2B sales style). Prefer: « I'm reaching out to several people on the team to get different perspectives » only as a reply if asked.

Recap and next step

The cold email that works in 2026 is 5 sentences max, structured ABCDE (identity, connection, ask, ease, short signature). 12 copy-paste templates above cover most use cases: alumni, recruiter, mentor, founder, journalist, follow-up. Student target volume: 50 targeted emails over 3 months = 5-10 interviews = 1-3 opportunities.

Cold email alone isn't enough — you need an overall application strategy that combines LinkedIn, alumni, working mentor. To identify the right people in your target sector, talking to a working Vocacia mentor can give you the 5-10 most relevant names in 30 minutes.

For the other application pieces, see our job interview prep guide, when to post on LinkedIn for public presence strategy, and jobs safe from AI in 2026 for sector targeting.