Blog - One Two Three Send

The plain-text version that secretly halves your delivery

Every HTML email carries a plain-text twin. Yours is probably empty — and Gmail notices.

Image-to-text ratio is one of the strongest spam signals there is. Here’s the threshold most operators cross by accident.

Mobile email reading is paragraph scanning, not reading. White space is the design system you didn’t know you had.

GDPR, CAN-SPAM, and a 2024 FTC update changed what every newsletter footer is required to contain. Most haven’t caught up.

Spam folder placement isn’t a delivery problem. It’s a revenue problem with a deliverability symptom.

If your email needs three explanations before the first paragraph, your template is doing the writing’s job.

The conventional advice is to suppress people who don’t open. The math says the conventional advice is wrong.

Most senders obsess over subject lines and ignore the field that actually determines whether the email gets opened: the from name.

Most signup forms promise one thing and deliver another. Here’s how to fix the gap between what you advertise and what you actually send.

Most newsletter writers still think in broadcast terms. Here’s why that instinct is killing engagement and what to do instead.