{"id":403,"date":"2026-09-20T11:04:50","date_gmt":"2026-09-20T11:04:50","guid":{"rendered":"https:\/\/the4thinteraction.com\/b2b-email-deliverability-checklist\/"},"modified":"2026-09-20T11:04:50","modified_gmt":"2026-09-20T11:04:50","slug":"b2b-email-deliverability-checklist","status":"publish","type":"post","link":"https:\/\/the4thinteraction.com\/?p=403","title":{"rendered":"The B2B email deliverability checklist for 2026"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Great copy does not matter if it lands in spam. Mailbox providers now enforce authentication and complaint thresholds strictly. Run this checklist before every program.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Technical foundations<\/h2>\n\n\n\n<ul class=\"wp-block-list is-style-checks\">\n<li>SPF, DKIM and DMARC published and aligned for every sending domain<\/li>\n\n\n\n<li>Dedicated sending sub-domains for outbound, separate from your corporate domain<\/li>\n\n\n\n<li>Gradual warm-up: increase daily volume by no more than 20\u201330%<\/li>\n\n\n\n<li>One-click unsubscribe headers and a visible opt-out link<\/li>\n\n\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">List hygiene<\/h2>\n\n\n\n<ul class=\"wp-block-list is-style-checks\">\n<li>Validate every address before the first send; remove catch-alls from cold sequences<\/li>\n\n\n\n<li>Suppress bounces immediately and complaints permanently<\/li>\n\n\n\n<li>Cap sequences at 4\u20136 touches and stop on any reply<\/li>\n\n\n\n<li>Keep spam-complaint rate below 0.1% \u2013 monitor daily<\/li>\n\n\n<\/ul>\n\n\n\n<div class=\"wp-block-group t4i-callout\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Want help putting this into practice?<\/strong> Our strategists will review your current approach and share a practical plan. <a href=\"\/contact\/\">Book a consultation<\/a>.<\/p>\n\n\n<\/div><\/div>\n\n\n","protected":false},"excerpt":{"rendered":"<p>Google and Microsoft have tightened sender requirements. Here is the technical and list-hygiene checklist we run before any campaign goes live.<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"page_builder":"","footnotes":""},"categories":[32],"tags":[],"class_list":["post-403","post","type-post","status-publish","format-standard","hentry","category-email-marketing"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.5 - aioseo.com -->\n\t<meta name=\"description\" content=\"Google and Microsoft have tightened sender requirements. Here is the technical and list-hygiene checklist we run before any campaign goes live.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Prathmesh Chavan\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/the4thinteraction.com\/?p=403\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.5\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"the4thinteraction - the4thinteraction\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"The B2B email deliverability checklist for 2026 - the4thinteraction\" \/>\n\t\t<meta property=\"og:description\" content=\"Google and Microsoft have tightened sender requirements. 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