Email deliverability determines whether your campaigns reach inboxes or spam folders.
Authentication setup (SPF, DKIM, DMARC) is non-negotiable for establishing sender reputation.
IP warm-up strategy: gradually increase sending volume over 4-6 weeks for new sending domains.
List hygiene practices: regular sunset policies, bounce management, and engagement-based segmentation.
Monitor key metrics: inbox placement rate, spam complaint rate, bounce rate, and sender reputation score.