How to set up cold email: domains, mailboxes and DNS
The setup every cold email campaign needs before the first email: separate domains, the right number of mailboxes, SPF, DKIM and DMARC, and warm-up.
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Practical articles on setting up, staying out of spam, building lists, writing emails that get replies and running outreach for clients.
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Latest posts.
Fardeen KarimRead Email warm-up explained: how long it takes and what it does
What warm-up does, how long a new mailbox needs before campaigns, how fast to ramp up, and the signs that warm-up is working or not.
Fardeen KarimRead How many cold emails can you send a day without spam?
Safe daily volume per mailbox, why Google's sending limits are the wrong number to aim for, and how to scale by adding mailboxes instead.
Fardeen KarimRead How to write a cold email that gets replies
A simple four-part structure for cold emails, how to personalise without spending all day, and how to write follow-ups people actually answer.
Fardeen KarimRead How to build a B2B lead list that doesn't bounce
Where to find the right people, how to define who you're looking for, and how to clean and verify a list so bounces stay under 2%.
Fardeen KarimRead Email tracking in Gmail: how it works and what you can trust
How open and click tracking really work in Gmail, simple ways to add them without heavy extensions, and why an open can be counted when nobody read the email.
Fardeen KarimRead Cold email open rates: why the number misleads you
Why open rates stopped being a reliable measure of cold email, what a sudden drop can still tell you, and the numbers worth judging a campaign by instead.
Fardeen KarimRead What is a good cold email reply rate? My 12M email numbers
The 1-3% reply rate I've mostly seen across roughly 12 million cold emails, what moves it up or down, and how to tell whether your campaign has a real problem.
Fardeen KarimRead Cold email subject lines: how to write ones that get opened
How I write cold email subject lines: short, plain and specific to the person. With examples by situation, what to avoid, and how to test them properly.
Fardeen KarimRead Cold email opening lines that don't sound like a template
How to write the first line of a cold email: patterns that sound human, examples of each, what to stop writing, and how to personalise without faking it.
Fardeen KarimRead Cold email examples you can adapt, with why each one works
Short cold email examples for agencies, SaaS, freelancers and recruiters, plus a follow-up, each with a note on why it's written that way.
Fardeen KarimRead How many follow-ups should a cold email get? My exact timing
The sequence I use: one email and three follow-ups, waiting 3, 5 and 7 days. What to say in each, when to stop, and how to avoid annoying people.
Fardeen KarimRead Why your cold emails go to spam, and how to fix each cause
The real reasons cold email lands in spam, in the order I'd check them: authentication, volume, list quality, new domains, content, and how to confirm the fix.
Fardeen KarimRead Gmail bulk sender requirements: what cold emailers must do
Google's sender rules in plain English: who counts as a bulk sender, the 0.3% spam line, SPF, DKIM, DMARC, one-click unsubscribe, and Microsoft and Yahoo.
Fardeen KarimRead Is cold email legal? US, UK, EU, Germany, Canada, Australia
What the law says about B2B cold email in the US, UK, EU, Germany, Canada and Australia, what each email needs, and when you need consent. Not legal advice.
Fardeen KarimRead Google Workspace for cold email: limits and a safe setup
Why Google Workspace is a common choice for cold email, its real sending limits, the setup I use, and the mistakes that cost you domains.
Fardeen KarimRead How to find someone's work email, and check it's real
Practical ways to find a work email address: company sites, patterns, LinkedIn exports and lead tools, plus how to verify an address without emailing it first.
Fardeen KarimRead How to verify an email list before you send a cold campaign
How email verification works, what valid, risky and invalid really mean, when to verify, how to treat catch-alls, and how to keep your bounce rate under 2%.
Fardeen KarimRead Cold email mistakes I've seen sink campaigns over 12M emails
The mistakes that kill cold email campaigns, from bad lists and weak offers to spam problems, and what to do instead. Learned over about 12M emails.
Fardeen KarimRead AI for cold email: where it helps and where it hurts
Where AI helps with cold email, such as drafts, first lines and replies, where it hurts, how to prompt it, and the checks to run before anything is sent.
Fardeen KarimRead Case study: 30+ meetings for a European marketing agency
How a European SEO and marketing agency booked 30+ meetings with trades and home service companies: 168 mailboxes, about 121,000 emails, in 2-3 months.
Fardeen KarimRead Case study: 30+ demos for a US sales software company
How a US marketing and sales software company booked 30+ demos with founders and CEOs: 36 mailboxes, a niche list, short plain emails and personal first lines.
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