What is cold outreach?
Cold outreach is a first, one-to-one message to someone who has no relationship with you, sent to start a business conversation. It can go by email, as a LinkedIn connection request or InMail, as an X Direct Message, or as a phone call. Cold describes the relationship. The cold messages that get answered still give the person a specific reason to hear from you now.
Three things sit next to it and are easy to confuse:
- Warm outreach goes to people who already know you a little: they replied to your post, met you at an event or were introduced.
- Email marketing goes to subscribers who signed up, usually through a newsletter tool, and follows different consent rules in many countries.
- Spam is the same message sent to anyone, with no reason tied to the person and no way out. The platforms below define it in their own words.
Two search terms mean the same thing as cold email. A cold call email is the written version of a cold call, sent to someone who didn't ask to hear from you. A cold marketing email is usually a cold sales email sent to someone who never subscribed; our cold email definition with an example sets out how it differs from email marketing.
Where does a cold message land on each channel?
Each channel decides who can receive a message from a stranger, where it lands and how many you can send. This table comes from each platform's own help pages, checked on 4 November 2026.
| Channel | Who you can reach cold | Where it lands | Limits the platform states |
|---|---|---|---|
| Anyone whose work address you can find | Their inbox, or spam if filters flag it | Your provider's sending cap: Google Workspace allows 2,000 messages a day per user, 500 on trial accounts | |
| LinkedIn connection request | LinkedIn members | Their invitations, pending until they accept | Free members can add a personalised note to five requests a month; Premium members have no cap on notes. LinkedIn sets invitation limits but that page gives no number; reaching one may restrict your invitations, typically for a week |
| LinkedIn InMail | LinkedIn members, if you pay for Premium or Sales Navigator (LinkedIn calls InMail a Premium account feature) | Their LinkedIn inbox | Monthly credits: Premium Career 5, Premium Business 15, Sales Navigator Core 50. A credit comes back if the InMail is accepted, declined or answered within 90 days. One InMail per person until they reply |
| X Direct Message | People who follow you; people who allow message requests from everyone; people who allow requests from Verified accounts, if you are Verified; people who have messaged you before | If they don't follow you, in Requests, kept apart from their other DMs until accepted | On the iOS and Android apps, a quality filter is on by default and hides requests X thinks may be lower quality, with no notification; they stay viewable at the bottom of Requests |
Two details change the plan. A free LinkedIn account can't put a note on any request past the fifth each month, so the note is a scarce thing to spend on the people you most want. And on X, a DM to someone who doesn't follow you may never be seen, which is why our guide to X's DM limits and the reply-first warm-up starts in public. For which channel books more calls once a message arrives, see our comparison of cold email, LinkedIn and X.
What do LinkedIn and X say about cold messages?
Both platforms allow messages to strangers and both ban the untargeted kind. LinkedIn's Professional Community Policies say: "Do not use our invitation feature to send promotional messages to people you don't know or to otherwise spam people." The same section rules out untargeted, irrelevant, obviously unwanted or gratuitously repetitive messages. LinkedIn's invitation-limit page goes further and recommends sending invitations only to people you know and trust.
That cuts against two common pieces of advice:
- Pitch in the connection note. The policy names promotional invitations to people you don't know. Use the note, if you have one to spend, for the reason you're connecting. Bring up what you sell after they accept, and only if it fits what they wrote about.
- Always add a note. On a free account you get five a month. Most of your requests will go without one, so your profile headline and recent posts do that job.
X's authenticity policy, dated April 2025, lists bulk, aggressive, high-volume unsolicited replies, mentions or Direct Messages as content spam, along with sending identical DMs. Enforcement runs from anti-spam challenges, where X locks the account and asks for a phone number or a puzzle, to temporary loss of features such as Direct Messages, and permanent suspension for severe violations. One message per person, written from something they posted, is the practical reading of both policies.
Can you automate cold outreach?
Parts of it, and the platforms draw the line in different places. Work done off the platform, such as drafting, scheduling emails and logging replies in a CRM, is yours to automate. Actions on LinkedIn and X themselves are where the rules differ:
- LinkedIn. Its prohibited software page says LinkedIn doesn't permit third-party software, bots or browser extensions that scrape or automate activity on its website, quoting a User Agreement ban on bots used to send or redirect messages. Members who use such tools risk having their accounts restricted or shut down. Our guide to what LinkedIn allows and what gets accounts restricted goes through the detail.
- X. Its automation rules say: "You may not send unsolicited Direct Messages in a bulk or automated manner." Automated DMs are allowed only when the recipient has asked or clearly shown they want to hear from you, for example by messaging you first, and can opt out. The rules add that someone being able to receive your DMs does not necessarily mean they expect automated ones, and that sending automated replies based on keyword searches alone is not permitted.
- Email. Sending tools and sequences are normal here. The legal rules attach to each message, covered in the next section, and the mailbox provider's caps from the table above still apply.
Whatever you automate, keep the reason for each message specific to the person. A sequence that sends the same words to everyone is what LinkedIn's and X's pages describe as spam.
Is cold outreach legal in the US, UK and EU?
In the US, the FTC lists no step for asking permission before you email a business, but sets rules for every commercial email; the UK's email rule is lighter for companies than for individuals; the EU requires consent for individuals. This is a summary of the regulators' own pages and isn't legal advice.
- US. The FTC's CAN-SPAM guide says the law makes no exception for business-to-business email. Each commercial email needs accurate header information, an honest subject line, a clear disclosure that it is an ad, a valid physical postal address and a clear way to opt out. Opt-outs must be honoured within 10 business days, and each email in violation can cost up to $53,088.
- UK. The ICO's business-to-business guidance (archived 11 October 2026; the ICO marks it under review after the Data (Use and Access) Act) says the PECR consent rule for electronic mail doesn't apply to corporate subscribers such as companies and limited liability partnerships. Sole traders and some partnerships count as individuals, so they need consent or the soft opt-in. You must not hide your identity and must give a valid opt-out address. If you hold a named person's details, UK GDPR applies too.
- EU. Article 13 of the ePrivacy Directive allows marketing email to people who are natural persons only with prior consent, apart from existing customers for similar products, and leaves each member state to protect other subscribers such as companies.
One UK detail matters for cold outreach on social platforms. The ICO's page defines electronic mail broadly and lists direct messages via social media among its examples, so the same PECR rules can reach a LinkedIn or X message as well as an email. Our guide to GDPR, UK PECR and CAN-SPAM side by side covers penalties and the GDPR duties for named contacts.
How much cold outreach can a small team send in a week?
About four hours of research and writing for 40 new people, if each person takes six minutes. Here is a worked example with a sample company and our own assumptions, so swap in your numbers.
Northwind Ltd (a sample company) has two founders and wants 40 new people a week: 25 by email, 15 on LinkedIn from a free account.
| Item | Arithmetic | Result |
|---|---|---|
| Emails, first message plus two follow-ups | 25 people x 3 emails | 75 emails across about two weeks |
| Email sending cap used | 75 emails over 10 working days is 7.5 a day; with a new 25 starting each week, about 15 a day once two weeks overlap, against Google Workspace's 2,000 a day | Under 1% of one mailbox's daily cap |
| LinkedIn requests a month | 15 a week x 52 weeks / 12 months | 65 requests |
| Requests that can carry a note on a free account | 5 of 65 | 60 go without a note |
| Research and writing time | 40 people x 6 minutes | 240 minutes, 4 hours a week |
The sending is the small part. The cap leaves plenty of room; the scarce things are the five LinkedIn notes and the founders' four hours. So Northwind spends the notes on its five best-fit people each month, sends the rest of its LinkedIn requests without one, and saves the writing time for the reason in each first line.
Finding that reason is the slow part of the six minutes. Siela's Lead Finder looks for one for you, such as someone asking how to solve the problem you solve, hiring for the work you automate or changing role, and scores each lead hot, warm or cold with a one-line reason.
What should you check before you send?
Run this before the first message of a new campaign goes out. It is written for a team of one to five.
This week, pick ten people you'd most like as customers, write the reason for each in one line, and send those ten by hand before you automate anything.
Frequently asked questions
What does cold call email mean?
It means a cold email: a sales email to someone who has never dealt with you and didn't ask to hear from you, written the way a cold call would be made. The term borrows from phone sales. The same rules apply as for any cold email, so in the US it needs an honest subject line, your postal address and a working way to opt out.
Is cold emailing illegal in the US?
Not in itself. The FTC's CAN-SPAM guide lists no step for getting permission before you email a business contact, and it says the law makes no exception for business-to-business email. Instead, every commercial email must meet its rules: accurate sender details, an honest subject line, a postal address, a clear opt-out and opt-outs honoured within 10 business days. This is general information and isn't legal advice.
How do you succeed at cold calling in sales?
Call with a reason tied to the person, ask one question early and accept a no quickly. In the UK, the ICO says that in most cases business calls must not go to numbers on the Telephone Preference Service or Corporate TPS without consent, the caller must say who is calling and show a number, and both registers plus your own do-not-call list should be screened before you dial. This isn't legal advice.
Is a LinkedIn connection request cold outreach?
Yes, when it goes to someone you have never spoken to. LinkedIn's own pages recommend inviting people you know and trust, and its community policies say not to use invitations to send promotional messages to strangers. A request that gives a short, specific reason and leaves the pitch out keeps within those words.
What is the difference between cold outreach and spam?
Cold outreach is chosen: a named person, a reason that fits their work and an easy way to say no. Spam is the same message sent to anyone. LinkedIn's community policies describe spam as untargeted, irrelevant or gratuitously repetitive messages, and X's policy lists identical DMs and bulk unsolicited messages, so the test is whether your message could only have gone to that person.
Sources
- LinkedIn: Professional Community Policies (checked 4 Nov 2026)
- LinkedIn Help: Invitation limit reached (checked 4 Nov 2026)
- LinkedIn Help: InMail message credits and renewal process (checked 4 Nov 2026)
- LinkedIn Help: Prohibited software and extensions (checked 4 Nov 2026)
- X Help Center: About Direct Messages (checked 4 Nov 2026)
- X Help Center: Automation rules (checked 4 Nov 2026)
- X Help Center: Authenticity policy (policy dated April 2025; checked 4 Nov 2026)
- Google Workspace Admin Help: Gmail sending limits in Google Workspace (checked 4 Nov 2026)
- FTC: CAN-SPAM Act, A Compliance Guide for Business (checked 4 Nov 2026)
- ICO: Business-to-business marketing (archived copy) (archived 11 Oct 2026, read 4 Nov 2026)
- EUR-Lex: Directive 2002/58/EC (ePrivacy), consolidated text (checked 4 Nov 2026)