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Contacts and channels

Writing to someone who does not know you

The first message to a third party decides whether they reply or take it for a scam.

Updated on 13/08/2026

When you ask something of someone who has never heard of you — a supplier's accountant, a client's engineer, a private individual — the message competes with a reasonable instinct: that an email with a link asking for documents looks exactly like a scam.

What makes them reply

ElementWhyWhere to put it
Who you are, with a recognisable name"Code Contract" means nothing to them; your company doesIn the subject and first line
Why you are writingThe contract, the order, the specific siteSecond line, with the reference
Exactly what you needA short list, not "the documentation"Visible without opening anything
And by whenWithout a date there is no urgencyAt the end, with the reason

Important

The first element decides. A message arriving on behalf of an unknown platform gets deleted; the same message on behalf of the company they work with gets opened. Putting your brand on what they receive is not cosmetics: it is response rate.

What makes them NOT reply

Watch out

If you also ask them to register, create a password or install something, half will not. Supplying documents needs no account: they enter by their link, upload theirs, done. If your message suggests otherwise, you are complicating it for nothing.

When they still do not reply

  1. 1

    Check the status before insisting

    Bounced, unopened, or opened by someone else are three different problems.

  2. 2

    Change channel before changing tone

    A text saying "I've emailed you" unblocks many situations.

  3. 3

    Call once, and note what they say

    A thirty-second call resolves what five emails do not.

  4. 4

    And if the problem is not knowing what to send, show them

    One example of what you want beats a description.

Worth knowing

Whoever receives the request pays nothing to supply or sign: no account, no licence, no balance needed. All consumption is on your side, and it is worth saying so when someone asks whether it will cost them.

Can it be sent from our domain?

Yes, and it considerably improves trust and deliverability.

What if they say it looks like phishing?

Good sign: those are alert people. Confirm by another route and carry on.

Are reminders worth sending?

Yes, spaced out. Most people reply to the second, not the first.

A real case

The situation

A company sends document requests and only a third reply.

What you do

  1. Puts its brand and the order reference in the message
  2. Adds the concrete list and a date

What you get

First-send response rate rises and chasing stops being the main job.

The situation

You write to somebody who does not know you and they do not reply.

What you do

  1. Explains who you are and why you are writing

What you get

The email is opened rather than dismissed.

The situation

The email looks automated and lands in junk.

What you do

  1. Personalises the subject and sender

What you get

The notice reaches the main inbox.

The situation

The recipient doubts whether the link is legitimate.

What you do

  1. Gives notice beforehand by another route

What you get

The link is opened with confidence.

The situation

Too much is asked for at first contact.

What you do

  1. Asks for little and explains the rest later

What you get

The first attempt completes.

The situation

Nothing says what happens after replying.

What you do

  1. Explains the next step in the notice itself

What you get

The recipient knows where they stand.

This article answers

  • first message to a new supplier
  • recipient thinks it is phishing
  • how to request documents from an outsider
  • getting people to trust a link we send