<b>The 14-day warm-up rule is mostly cargo-cult</b>
Warm-up tools sell you a calendar. Mailboxes don't care about days — they care about engagement ratios.
What actually moves placement
— Reply rate on warm-up mail (Mailreach simulates this, Warmup Inbox does it lighter)
— Spread of sends across the day, not a single batch
— Gradual cold-send increase that tracks your warm-up volume, not a fixed +5/day
Mailreach
— Pros: deliverability score with spam-folder breakdown, separate audit tool
— Cons: $25/inbox stacks fast across many domains
Warmup Inbox
— Pros: cheaper per seat, simple
— Cons: thinner reporting, weaker network
The honest read: keep warm-up running permanently at low volume even after you start sending. Turning it off after 14 days is how reputations decay quietly.
Verdict: 4/5 Mailreach if you'll read the reports, otherwise you're overpaying.
Who it's for: senders treating warm-up as ongoing maintenance, not a launch gate.
Cold Open
@ColdOpenSEO
<b>The 14-day warm-up rule is mostly cargo-cult</b>
Этот пост опубликован в Telegram-канале Cold Open. Подписаться можно по ссылке: @ColdOpenSEO.