Field notes on outbound
that actually lands.
Practical guides on deliverability, mailbox warm-up, sender reputation, and running disciplined campaigns.
SPF, DKIM, and DMARC for Cold Email: A Plain-English Setup Guide
Three DNS records decide whether your cold email is even eligible to reach an inbox. Here's what each one actually does, how to set them up correctly, and the mistakes that quietly break them.
Read articleHow Long Should You Warm Up a New Email Account?
Three to four weeks for a brand-new domain, about two for a new mailbox on an established one. Here's what actually drives the timeline — and the signals that tell you you're ready before the calendar does.
Read article DeliverabilityHow Many Cold Emails Can You Send Per Mailbox Per Day?
The safe number is 20-40 per mailbox per day — far below what Google and Microsoft technically allow. Here's the ramp schedule, the volume math, and the signals that tell you to slow down.
Read article DeliverabilityWhy Are My Cold Emails Going to Spam? 15 Causes and How to Fix Each One
Spam placement rarely has one cause — it's usually three or four small problems stacking up. Here are the 15 that actually matter, how to test for each, and what to change first.
Read article Comparisons7 Best Smartlead Alternatives for Cold Email in 2026
Smartlead is fast and cheap at scale, but its shared warm-up pool and open-based reporting frustrate a lot of teams. Here are seven alternatives, what each is actually good at, and what they cost.
Read article DeliverabilityHow to Warm Up an Email Mailbox for Cold Outreach
New mailboxes that start sending cold email at volume get filtered fast. Here's a realistic warm-up schedule, the signals that matter, and the mistakes that quietly burn domains.
Read article