Cold Messaging in B2B: Email, LinkedIn or Text First?

    Short answer

    What each channel allows by law, what the reply data really supports, and which one to start with

    Artem Smirnov
    Artem Smirnov

    Last updated · 11 min read

    Artem Smirnov in a dark suit against a charcoal studio backdrop, next to the line 'EMAIL, LINKEDIN OR TEXT. The law picks your first channel'

    What is cold messaging, and does it still work in B2B?

    Cold messaging is a first business message sent by email, LinkedIn or text to someone who has no relationship with you and did not ask to hear from you. It still works in B2B when two things are true. Your list holds the people who actually buy what you sell. The channel you picked is legal for that person in that market.

    The three channels differ most on the second point, and my short answer is to open on LinkedIn, add warm email (an email sent after a LinkedIn touch, so your name is already familiar), and text only people who gave written consent. Cold email to companies is lawful in the US and, for most company types, the UK. Canada is stricter: you need consent or a documented exemption, and you carry the burden of proving it.

    A LinkedIn message answers to the platform, and in the UK it also falls under the same law as email. Cold texting carries the most risk, because commercial texts need written consent in the US.

    In numbers, "works" is modest. Across our campaigns, replies usually land near 1%. Once we send thousands of emails a day, expect closer to 0.5%. Very specific, heavily personalized campaigns can reach 15% to 17%, and in those campaigns about 75% of the people who reply are interested. Expect 10% to 50% of replies to become meetings on the calendar.

    Higher volume means weaker averages. Treat these as planning ranges, never as a promise.

    Gartner polled 632 B2B buyers between August and September 2024, and 73% of them said they actively avoid suppliers who send irrelevant outreach.

    The same Gartner survey found 61% of B2B buyers prefer an overall rep-free buying experience. So most people on your list did not ask to hear from a rep. A message that misses its reader teaches that buyer to skip your name next time.

    How do email, LinkedIn and text compare as cold channels?

    ChannelWhat you need before the first sendHow opt-out worksWho can shut you downEvidence behind it
    EmailAn authenticated sending domain and verified addressesA working opt-out in every message, honored within a legal deadline (by region below)Inbox providers, through filtering and spam-rate limitsOne large independent study, plus campaign ranges
    LinkedInA profile a buyer will trust when they check youStop when asked; in the UK a direct message falls under the email rulesLinkedIn, through its limits on each accountCampaign ranges and one clean channel split
    TextDocumented written consent for commercial texts in the USReplies such as "stop" count as an opt-outFCC rules, plus private lawsuits under the TCPANo independent B2B dataset

    Email has the strictest gatekeeper. Gmail's sender requirements say every sender needs SPF or DKIM and must keep the spam rate below 0.3%, with below 0.10% as the target. Senders above 5,000 messages a day must set up SPF, DKIM and DMARC and offer one-click unsubscribe in marketing messages (Google Workspace Admin Help).

    Google also tells senders not to buy email addresses.

    My clearest email versus LinkedIn comparison is one UK client that builds software and sells IT consulting, with both channels run from 17 April through 17 May 2023 and results tracked separately.

    ChannelPositive repliesBooked meetingsSales
    LinkedIn62183
    Cold email41132

    The client signed 6 contracts worth GBP 928,800 in total that month, and 5 of them came through these two channels. The "meetings" here are sales calls booked through email and LinkedIn messages.

    LinkedIn won every column - in one month, for one UK client. One client is not a rule. Email still brought in 2 of the sales. So I open on LinkedIn and let a warm email follow, because the email then lands on a name the buyer has already seen.

    My team works mostly through cold email and LinkedIn outreach. We do no pure cold calling and run no dialing floors. When a client needs it, we add warm calls for people who replied earlier, engaged or opted in. So my own numbers are email and LinkedIn numbers. Every text figure on this page comes from outside sources.

    What does the reply data for each channel actually prove?

    Most reply figures online come with no method. Here is how I grade the ones worth reading.

    FigureSource typeSample and dateWhat it can support
    Email reply rate and the lift from one extra follow-upIndependent study12 million outreach emails, link-building and PR outreach, page last updated April 2019That follow-ups matter; it is not a sales benchmark
    Reply and meeting ranges in the first sectionOwn campaigns, email and LinkedInMany campaigns across marketsPlanning ranges, falling as volume rises
    Email vs LinkedIn split aboveOwn campaignOne client, one monthThat LinkedIn out-replied email for that client
    Same email from two sendersOwn audit, linked belowOne message, two sendersThat sender trust moves reply rates
    Averages published by sending toolsVendor data from their own usersMethod rarely statedNothing I would plan a quarter on
    Cold text reply rates for B2BNoneNo independent dataset with a stated methodNothing, so this row stays empty

    The independent row is Backlinko's outreach study, built on Pitchbox data. Only 8.5% got a reply, and sending one additional follow-up raised replies by 65.8%.

    Two caveats cut its weight. The emails were mostly link-building and guest-post requests, and the page was last updated in April 2019, so treat it as old data from a different kind of outreach. What survives both caveats is the follow-up finding.

    For wider figures, see the multichannel outreach statistics that hold up. For the wording of the LinkedIn message itself, see how to write a LinkedIn cold message.

    Is cold texting illegal in the US?

    Often, yes. An autodialed commercial text to a mobile number needs documented written consent under federal rules, and without consent records every cold text is a legal risk.

    The FCC rule at 47 CFR 64.1200 treats a text as a call. Its definitions say "call" includes a text message, SMS included (Cornell LII copy of the rule). Telemarketing calls to mobile numbers made with an autodialer or a prerecorded voice need prior express written consent.

    The FCC's consumer guide puts it more simply: commercial texts require written consent, and people can opt out at any time in any reasonable way.

    A reply of "stop", "quit", "end", "revoke", "opt out", "cancel" or "unsubscribe" counts as revoking consent, and the sender gets no more than 10 business days to act on it. Calls to homes are limited to 8 a.m. to 9 p.m. in the recipient's time zone. Numbers on the national do-not-call list are off limits.

    The cost of a mistake adds up fast. The Telephone Consumer Protection Act (TCPA) lets a recipient sue for $500 per violation, and a court can triple that for willful or knowing violations.

    What are the rules for cold email, LinkedIn and text in each region?

    RegionCold email to businessesLinkedIn messagesTexts
    USAllowed, but CAN-SPAM makes no exception for B2B: honest header and subject line, a postal address, opt-outs honored within 10 business days, fines up to $53,088 per email (figure from the FTC's CAN-SPAM compliance guide, which the FTC adjusts for inflation each year)Platform rulesWritten consent for commercial texts, as above
    UKCompanies, LLPs, Scottish partnerships and government bodies need no consent under PECR, the UK's e-marketing rules, if you name yourself and give a valid opt-out address; individuals are covered by PECR regulation 22Counts as electronic mail, so the same split appliesSame split as email
    CanadaCASL, Canada's anti-spam law: consent, sender identification and an unsubscribe in every message; stop within 10 business daysCan count as a commercial electronic message, so apply the same consent rules as emailCASL's definition of spam includes unsolicited texts
    EUArticle 13 of the ePrivacy Directive: prior consent for individuals, company rules left to each country, sender never hidden, a valid reply address alwaysUsed instead of cold email where email has no compliant basis; check local law first, since the UK already treats DMs as emailConsent first

    Every rule, fee and deadline on this page comes from the sources linked above. Three details trip people up most.

    UK sole traders. The ICO treats sole traders and some partnerships as individuals. Email, texts and LinkedIn messages to them need their consent or the soft opt-in, a narrow exception for your own past customers. A bought list or a stranger never qualifies. The ICO also notes its guidance is under review following the new Data (Use and Access) legislation.

    Canada's published addresses. A work email published online gives implied consent only if the page carries no statement refusing such messages, and your message relates to that person's business role. If you claim consent, you carry the burden of proving it.

    The EU and the three markets I treat differently. Article 13 protects individuals directly and leaves company inboxes to national law, so rules vary by country. For Germany, Austria and the Czech Republic, we use LinkedIn and skip cold email unless a compliant basis exists. When a client needs Germany, we apply our own stricter rules.

    Why can the same cold message get very different reply rates?

    The same cold email, word for word, can pull far more replies for one sender than for another, with nothing in the copy changed. I walk through that comparison in the same cold email with two reply rates.

    In B2B, nobody buys from an email. They buy after they check you out. They open your profile, your website and your proof, and decide whether you look real before they type a word. That is why a rewrite never rescues a wrong list or a sender nobody trusts. Fix those first.

    In my view, your profile is a page written for clients. It is not a CV. A decent message from a profile with real proof gets answered more often than a perfect one from an account with nothing behind it.

    The list side has a hard number. Keep bounces below 0.5% by running each address through verification first.

    How should a multichannel cold messaging sequence run?

    The prospect should know my name before an email lands. So the email comes after a LinkedIn touch, and that is all "warm" means here. I plan for 5 to 6 touches at minimum, ideally across several channels, since one message and done is a lottery ticket, not a sequence.

    A working order looks like this:

    1. Connection request on LinkedIn, with no pitch.
    2. A short LinkedIn message after they accept: one question about their situation.
    3. A warm email that mentions the LinkedIn contact and asks for a short call.
    4. A LinkedIn follow-up that adds one piece of proof.
    5. An email follow-up with a different angle.
    6. A third follow-up, short, after real time has passed.

    Follow-up number three is usually where the replies come, as long as real time passes between sends. Writing it in advance makes it harder to skip.

    Two rules sit over the whole sequence. Stop all automated steps at the first reply and hand it to a person. And treat an opt-out on any channel as an opt-out on all of them.

    Here is a made-up step 3, written for a seller of site inspection software to a UK construction contractor:

    Subject: Inspection reports across your sites

    Hi Sarah, thanks for accepting my request on LinkedIn last week. Your team runs 14 live sites across the North West, and at contractors that size, inspection reports tend to end up in several places. We built a tool that keeps them in one. Would 15 minutes next Tuesday be useful, or is someone else closer to this?

    Tom Harris, Acme Site Tools Ltd, Manchester. If this is not for you, reply "no" and there will be no further messages.

    Which channel should you start with?

    Here is how I would pick, market by market, based on the law above and that one channel split.

    Your market and situationStart withThen addWhy
    US, selling to companiesLinkedInWarm email with a postal address and opt-outOne client's split showed LinkedIn out-replying email, so treat it as a starting bet; B2B email is lawful under CAN-SPAM's conditions
    UK, limited companies and LLPsLinkedInEmailNo PECR consent needed if you identify yourself and offer an opt-out
    UK, sole traders and some partnershipsNo cold messagesConsent-based marketing onlyEmail, texts and DMs to them all need consent or the soft opt-in
    CanadaLinkedInEmail to published work addresses that match the person's role, with a record of each sourceThe sender must prove consent
    Germany, Austria, Czech RepublicLinkedInEmail only with a compliant basisEach country sets its own company rules, so we play it safer
    Any market, mobile numbers with no consent recordsLinkedIn or emailNo textsCommercial texts need written consent in the US and count as spam under CASL

    Texts enter the plan only as a follow-up to people who gave documented written consent. The same order also holds up over a full year: a Canadian financial advisory firm we ran on LinkedIn plus warm emails booked 421 sales calls in 12 months, with no email-only campaign to compare against.

    Not sure which channel to open on in your market? Book a call and tell me who you write to and where they sit. I will say what I would start with.

    Questions founders ask before they send

    Can I send a cold text to a phone number listed on a company website?

    A published number is not consent. Under the FCC rule, written consent must be a signed agreement that tells the person they do not have to sign it to buy anything (Cornell LII). A work mobile is still a wireless number, so speak to counsel before texting one. This is not legal advice.

    How do I handle an opt-out that arrives on a different channel from the one I used?

    Honor it everywhere. The FCC rule says a sender may not name one exclusive way to opt out. CAN-SPAM bans charging a fee or asking for anything beyond an email address to process a request, and bans selling or passing on opted-out addresses. Keep one suppression list across email, LinkedIn and texts.

    What should I say when a prospect asks where I got their contact details?

    Tell them plainly and offer to remove them. In the UK, if you took their details from another source, the ICO expects privacy information within one month, and a person's right to object to direct marketing is absolute. Under CASL, keep a dated screenshot showing the page where the work address was published.

    Is cold messaging better than cold calling for B2B?

    My team does no pure cold calling and has no phone results, so I will not rank the two on my own data; we only add warm calls for people who already replied, engaged or opted in.

    If you call US prospects, the FCC rule adds duties: keep a written do-not-call policy, honor company do-not-call requests for 5 years, and use a registry copy no older than 31 days.

    Is cold messaging the same as spam?

    It becomes spam when it is untargeted, hides the sender or ignores an opt-out. Volume is not the test, because the FTC says CAN-SPAM is not limited to bulk email. Canada shows how buyers react. Canadians filed 167,939 spam complaints between October 2021 and March 2022, and the top reason was email sent with no consent.

    Pick the channel the law allows first. Then fix the list and the sender. The words come last.

    Want to get more B2B clients for your business?

    I help B2B companies book 10 to 100+ qualified sales calls per month with outbound. Let's see if it fits yours.

    Artem Smirnov
    Artem Smirnov

    I help B2B companies book qualified sales calls with cold email and LinkedIn outbound.