Email Marketing Tips
Email is the only audience you own. Tips on earning the open, one job per email, list hygiene and the metrics that matter.


Written by
Sam started Cold in 2023 and still answers the phone himself. He sets the pace, then makes sure everyone gets a say in how the work gets done. A client going quiet bothers him more than it should, which is why they rarely do. When he's not here he's learning Norwegian or playing bass.
Read bio ↓Email is the only audience you own
Every other channel rents you access. The algorithm decides who sees your posts, the ad platform decides what a click costs, and either can change the terms overnight. Your email list is yours. That alone makes it worth more attention than most small businesses give it, which is usually a neglected newsletter and an apology every time it goes out late.
Earn the open
Nobody wants your email. Start there and the rest follows. The subject line is a promise about what's inside, and the fastest way to kill a list is to break that promise twice. Specific beats clever: "Three kitchen layouts that add value" outperforms "News from us!" every time it's tested. Send from a person, not info@, because people open people. And the preview text is a second subject line, so stop letting it read "view in browser".
One email, one job
The emails that convert ask the reader to do exactly one thing. One link, repeated maybe twice, no menu of options. When there are five calls to action there are none. This is also the discipline that makes writing faster: decide the single job first, and the email writes itself around it.
Segment like a human, prune like an accountant
Segmentation needn't be elaborate. Customers versus prospects is already ahead of most lists, and people who bought X getting told about things adjacent to X covers most of the rest. Then prune: subscribers who havent opened anything in six months are hurting you, because mailbox providers watch engagement, and a fat dead list drags deliverability down for everyone still reading. Cutting them feels like losing something. It's losing a liability.
Measure past the open
Open rates went unreliable when Apple started prefetching mail, so judge on clicks and, better, on replies and sales. An email three people answer beats one that three hundred merely opened. Reply-worthy emails share a trait: they read like they were written to someone, because they were.
The channel rewards patience. A list built slowly from real customers and site visitors, mailed consistently with things worth reading, quietly becomes the most profitable asset in the marketing stack. The businesses that get there almost all started the same way: badly, but this month.

Written by
Sam Twigg
Sam started Cold in 2023 and still answers the phone himself. He sets the pace, then makes sure everyone gets a say in how the work gets done. A client going quiet bothers him more than it should, which is why they rarely do. When he's not here he's learning Norwegian or playing bass.


