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Guides

Operator guides

Practical guides tied to product behavior.

Cold email infrastructure How to warm a new sending domain SPF, DKIM, and DMARC for outbound How many mailboxes do you need?Writing a first line that is not creepy How long should a cold sequence be?When to stop emailing a prospect Plain text vs HTML for cold email List building without becoming the villain CSV hygiene before import Agency playbook: one workspace per client From ServiceFlow customers to outreach lists Google Workspace setup for outbound Microsoft 365 setup for outbound Using SMTP without shooting yourself Send windows by region A/B tests that do not lie Reading bounce codes What to do after spam complaints Handling out-of-office at scale Unibox workflow for SDRs Guardrails for AI reply drafts Open tracking ethics in 2026 CAN-SPAM for operators Dedicated sending domain vs corporate Buying sending domains that look real Waiting on DNS without guessing Test sends that actually test Planning unique-contact quota Enrolling contacts via API Reporting for agency clients Seasonality in outbound Multilingual cold email From-name strategy Signatures that do not tank text wrapping Asks that get replies Follow-up angles that are not 'bumping this'Emailing a competitor's customers Post-event follow-up vs cold When inbound leads should not enter cold sequences Importing suppression from the last tool What to do with a burned domain IP reputation vs domain reputation Limits of seed testing How long should a cold email be?P.S. lines that work Why attachments are usually wrong Images in cold email When to include a calendar link Pricing in the first email Social proof without fake logos Video in cold email Personalization at scale without lying Tight ICPs send better Using data vendors with RangeLeads Why you should drop role accounts Catch-all domains International characters in From names Reply handling SLAs Handoff from inbox to AE When counsel says stop Security review questions we expect If a mailbox is compromised Offboarding and mailbox access Quarterly outbound audit Be skeptical of public benchmarks Founder-led outbound AE-owned outbound Running a pod on shared infrastructure Agency client kickoff checklist Pausing and resuming campaigns Weekend sends Holiday calendars Threading vs new subjects on follow-ups CC and BCC in cold How to word the unsubscribe Putting a physical address in email Keeping brand voice in a sequencer QA before you hit send What happens after the first booked meeting When not to use cold email