Home/Fix/Inbox Placement ProblemsInbox Placement ProblemsDiagnose spam folders, promotions tabs, and missing inbox placement.Reading time: 8 minDifficulty: IntermediateEstimated duration: 8 minPrerequisites: Inbox PlacementLast updated: 2026-07-17Author: EmpirePrerequisitesInbox PlacementWhether accepted mail lands in the primary inbox versus secondary or junk folders.▼Related learningInbox PlacementWhether accepted mail lands in the primary inbox versus secondary or junk folders.▼Related problemsGmail spam folderMail authenticated for your domain is accepted by Gmail but filed to Spam.Missing inbox placementMail is accepted but users cannot find it in Primary, Promotions, or obvious junk — including tabs, filters, or silent discard.Outlook junk folderOutlook.com / Microsoft 365 recipients see mail in Junk or experience SNDS/blocking symptoms.Promotions tabGmail accepts mail but files it to Promotions instead of Primary — often expected for bulk mail, sometimes a surprise for transactional streams.Yahoo spam folderYahoo / AOL recipients consistently receive mail in Spam despite acceptance.▼Recommended toolsGlockAppsInbox placement and deliverability testing across major mailbox providers.Mail-TesterSend-a-message spam and authentication scoring for pre-send QA.WorkflowsOpen step-by-step: Diagnose authentication failuresTrace SPF/DKIM/DMARC failures to a remediable cause.Open step-by-step: Improve inbox placementDiagnose why accepted mail misses the inbox and remediate reputation, auth, and engagement.Open step-by-step: Recover from Gmail spamExit Gmail Spam using Postmaster signals, authentication fixes, and controlled volume.Open step-by-step: Recover from Outlook junkRemediate Microsoft junking and throttling using SNDS, authentication, and list quality.Continue LearningProvider ProblemsProvider-specific issues at Gmail, Microsoft, Yahoo, and Apple Mail.PreviousDelivery ProblemsNextProvider Problems