Guides

Cold email guides

Every guide quotes the rule or the source it relies on, with the date we read it.

Updated 1 October 2026 · By Otman Ounana · How we research

Start with the topic you need. Each section below has its own guides, in the order we would read them.

In this section

The law by countryWhether you may send a B2B cold email in the UK, Ireland, the EU, the US, Canada and Australia, quoted from the regulators and the laws themselves.
Unsubscribe rulesWhat the law, Google, Yahoo and the email standards each require for unsubscribing, and what that means for low-volume cold email.
Handling repliesHow to answer the replies cold email gets: a referral to a colleague, 'where did you get my email', out-of-office and 'not interested'.
From your own GmailWhat sending cold email from the Gmail inbox you already use involves: Google's limits, the bulk sender rules and how to keep the account safe.
PersonalisationHow to personalise cold email with facts that are true: quoting the prospect's own site, checking every claim, and approving before anything is sent.

Type your website. Honest Intros reads it and shows the kind of first email it writes, quoting your own pages.

Free to start. Nothing is sent until you approve it.