Key takeaways
- A good first line is specific, true and leads straight into the reason for writing.
- Public posts give the strongest openers; role and company changes are the fallback.
- Compliments carry no information and read as a template.
- If the line could go to anyone else unchanged, it is not personalised.
What makes a good cold email opener
A good cold email opener is specific to the reader, true and connected to what comes next. It shows in one sentence that you know who they are and that the email has a reason to exist.
The examples below are illustrative, written for an imaginary seller of onboarding software. Each one points at a real detail and leaves room for the next sentence to explain why it matters.
- From a post: "Your point that onboarding fails in week two, not week one, matches what we hear from other support leads."
- From a role: "As the first operations hire, you probably own every tool nobody else wants to."
- From a company change: "Opening the Madrid office means a second support team working in another language."
How do you write an opening line from a LinkedIn post
Write an opening line from a LinkedIn post by responding to the argument in it, not to the fact that it exists. "Great post" says nothing; naming the point and adding to it shows you read it.
Pick a post from the last few weeks that relates to your reason for writing. An old post or one about their weekend makes the line feel researched for its own sake.
What can you write when the person has never posted
When the person has never posted, open with their role or their company's latest change. Both are public, both relate to work, and both can link to your reason for writing.
A role-based opener names a responsibility the job usually carries. A company-based one names something visible, such as a new office, a product launch or a run of hiring, and suggests what it means for the reader's team.
Why does flattery fail as an icebreaker for cold email
Flattery fails as an icebreaker for cold email because the reader has seen the same compliment in many other emails and recognises it as a template. Praise also spends the first line, the one shown in the inbox preview, on nothing the reader needs.
Respect reads better than praise. Showing that you understood their work earns more attention than saying you admire it.
How do you check a personalised first line before sending
Check a personalised first line with three questions: could it be sent to someone else unchanged, is every word of it true, and does the next sentence follow from it. A line that fails any of them needs rewriting.
Read it in the inbox preview as well. If the first few words are about you, rearrange the sentence so the reader appears first.
How to write a personalised opening line, step by step
One detail, one sentence, one link to the reason for writing.
- Find one public source about the reader: a recent post, their role or a change at their company.
- Pick the detail that connects most directly to the problem your email is about.
- Write one sentence that refers to that detail in your own words, without praise.
- Make sure the next sentence follows from it, so the reason for writing arrives naturally.
- Read the line as the recipient and rewrite it if it could be sent to anyone else unchanged.
Where Pebbles Ai fits
- CapabilityProspecting & customer recordsEach lead found with Find fresh leads comes with personalisation angles drawn from their public LinkedIn posts, falling back to their role and company when they have not posted.
- CapabilityOutreach contentAsk the Marketing assistant to turn an angle into an opening line and a full email; with a connected Gmail or Outlook mailbox the email is saved there as a draft.
Common questions
How long should a personalised first line be?
One sentence, short enough to show in an inbox preview. If it needs a second sentence to make sense, the detail is probably too obscure.
Is it intrusive to mention someone's LinkedIn post?
Not if it is a professional post they published for others to read. Personal details, family and anything from private accounts stay out.
Can AI write personalised opening lines for a whole list?
Yes, when each line starts from a real angle about that person. Check every line, because a confident line built on the wrong detail is worse than a plain one.
About this page. Written by the Pebbles Ai team for people who run sales, marketing and growth. Last updated .
