{"id":575,"date":"2026-01-26T08:39:08","date_gmt":"2026-01-26T08:39:08","guid":{"rendered":"https:\/\/e-warmup.com\/blog\/?p=575"},"modified":"2026-01-26T08:41:20","modified_gmt":"2026-01-26T08:41:20","slug":"outlook-hotmail-user-is-authenticated-but-not-connected","status":"publish","type":"post","link":"https:\/\/e-warmup.com\/blog\/outlook-hotmail-user-is-authenticated-but-not-connected\/","title":{"rendered":"Outlook &amp; Hotmail User is authenticated but not connected &#8211; How to resolve [Solved]"},"content":{"rendered":"\n<p>The error <strong>&#8220;User is authenticated but not connected&#8221;<\/strong> (sometimes appearing as &#8220;BAD User is authenticated but not connected&#8221; or similar) is a fairly common but frustrating issue that pops up almost exclusively when using <strong>third-party email clients<\/strong> (Thunderbird, eM Client, Mailbird, Evolution, Vivaldi Mail, etc.) to connect to <strong>Outlook.com<\/strong>, <strong>Hotmail.com<\/strong>, <strong>@live.com<\/strong>, or Microsoft 365 \/ Office 365 accounts via <strong>IMAP<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"371\" height=\"131\" src=\"https:\/\/e-warmup.com\/blog\/wp-content\/uploads\/2026\/01\/2022-12-28-12-50-32-5edb70.png\" loading=\"lazy\" alt=\"-\" class=\"wp-image-576\" style=\"width:689px;height:auto\" srcset=\"https:\/\/e-warmup.com\/blog\/wp-content\/uploads\/2026\/01\/2022-12-28-12-50-32-5edb70.png 371w, https:\/\/e-warmup.com\/blog\/wp-content\/uploads\/2026\/01\/2022-12-28-12-50-32-5edb70-300x106.png 300w, https:\/\/e-warmup.com\/blog\/wp-content\/uploads\/2026\/01\/2022-12-28-12-50-32-5edb70-100x35.png 100w\" sizes=\"auto, (max-width: 371px) 100vw, 371px\" \/><\/figure>\n\n\n\n<p>It almost never appears in the official Outlook desktop\/mobile apps or outlook.com web interface. The root cause is usually a combination of:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A long-standing <strong>bug\/limitation<\/strong> in Microsoft&#8217;s IMAP implementation on Exchange Online \/ Outlook.com servers<\/li>\n\n\n\n<li>OAuth2 token handling quirks<\/li>\n\n\n\n<li>Network\/protocol mismatches (especially IPv6 related in some cases)<\/li>\n\n\n\n<li>Server-side temporary glitches or strict security checks<\/li>\n<\/ul>\n\n\n\n<p>This has been reported for years (even back to 2014) and still occurs in 2024\u20132026.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Who Usually Sees This Error?<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Thunderbird users (very frequent after updates or new setups)<\/li>\n\n\n\n<li>eM Client, Mailbird, Evolution, custom scripts\/apps using IMAP<\/li>\n\n\n\n<li>People who recently changed password, enabled 2FA, or switched to app passwords<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">How to Fix It \u2013 Step-by-Step Solutions (Most to Least Recommended)<\/h3>\n\n\n\n<p>1. <strong>Switch to Exchange \/ Microsoft 365 protocol instead of IMAP<\/strong> (Best &amp; most reliable fix in 2024\u20132025) Many modern clients now support the <strong>Exchange<\/strong> (or &#8220;Microsoft 365&#8221;) account type, which uses EWS \/ ActiveSync \/ MAPI-over-HTTP instead of IMAP. This completely bypasses the buggy IMAP code on Microsoft&#8217;s side.<ul><li><strong>Thunderbird<\/strong>: Use &#8220;Add Mail Account&#8221; \u2192 enter email \u2192 let it auto-detect (it often picks Exchange now). If not, choose &#8220;Exchange&#8221; manually or install the Owl addon for better Exchange support.<strong>Mailbird<\/strong>: Go to Settings \u2192 Accounts \u2192 edit account \u2192 change protocol to Exchange (not IMAP).<strong>eM Client<\/strong>: Remove account \u2192 Add new \u2192 choose &#8220;Microsoft 365&#8221; or &#8220;Exchange&#8221;.<strong>Other clients<\/strong>: Look for &#8220;Exchange&#8221;, &#8220;Office 365&#8221;, or &#8220;Microsoft 365&#8221; account type.<\/li><\/ul>This is the #1 recommended workaround in recent support threads.<\/p>\n\n\n\n<ol class=\"wp-block-list\"><\/ol>\n\n\n\n<p>2. <strong>Re-add the account completely<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Remove \/ delete the account from your email client<\/li>\n\n\n\n<li>Close and restart the client<\/li>\n\n\n\n<li>Add it again (preferably using OAuth2)<\/li>\n\n\n\n<li>During login, use the browser popup to sign in to Microsoft (don&#8217;t enter password directly in the client if possible)<\/li>\n<\/ul>\n\n\n\n<p>Many times this clears stale tokens or cached session issues.<\/p>\n\n\n\n<p>3. <strong>Force IPv4 only (disable IPv6 temporarily)<\/strong> This has surprisingly fixed it for many Thunderbird users over the years.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Windows<\/strong>: Network Settings \u2192 Adapter properties \u2192 uncheck IPv6 \u2192 restart PC and email client.<\/li>\n\n\n\n<li><strong>Thunderbird advanced<\/strong>: about:config \u2192 network.dns.disableIPv6 \u2192 set to <strong>true<\/strong> \u2192 restart Thunderbird.<\/li>\n\n\n\n<li>Test again. Re-enable IPv6 later if everything works.<\/li>\n<\/ul>\n\n\n\n<p>4. <strong>Change authentication method (if using manual setup)<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Try switching from OAuth2 \u2192 &#8220;Normal password&#8221; (and use an <strong>app password<\/strong> if 2FA is enabled)<\/li>\n\n\n\n<li>Or the opposite: force OAuth2 if it&#8217;s set to basic auth.<\/li>\n\n\n\n<li>Incoming server: <strong>outlook.office365.com<\/strong> port 993 SSL\/TLS<\/li>\n\n\n\n<li>Outgoing: <strong>smtp-mail.outlook.com<\/strong> port 587 STARTTLS<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Most Important: Make sure &#8220;IMAP is enabled&#8221; for your Outlook\/Hotmail<\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"617\" src=\"https:\/\/e-warmup.com\/blog\/wp-content\/uploads\/2026\/01\/Screenshot-2026-01-26-at-12.19.52-PM-1024x617.png\" loading=\"lazy\" alt=\"-\" class=\"wp-image-577\" srcset=\"https:\/\/e-warmup.com\/blog\/wp-content\/uploads\/2026\/01\/Screenshot-2026-01-26-at-12.19.52-PM-1024x617.png 1024w, https:\/\/e-warmup.com\/blog\/wp-content\/uploads\/2026\/01\/Screenshot-2026-01-26-at-12.19.52-PM-300x181.png 300w, https:\/\/e-warmup.com\/blog\/wp-content\/uploads\/2026\/01\/Screenshot-2026-01-26-at-12.19.52-PM-768x462.png 768w, https:\/\/e-warmup.com\/blog\/wp-content\/uploads\/2026\/01\/Screenshot-2026-01-26-at-12.19.52-PM-1536x925.png 1536w, https:\/\/e-warmup.com\/blog\/wp-content\/uploads\/2026\/01\/Screenshot-2026-01-26-at-12.19.52-PM-2048x1233.png 2048w, https:\/\/e-warmup.com\/blog\/wp-content\/uploads\/2026\/01\/Screenshot-2026-01-26-at-12.19.52-PM-100x60.png 100w, https:\/\/e-warmup.com\/blog\/wp-content\/uploads\/2026\/01\/Screenshot-2026-01-26-at-12.19.52-PM-700x421.png 700w, https:\/\/e-warmup.com\/blog\/wp-content\/uploads\/2026\/01\/Screenshot-2026-01-26-at-12.19.52-PM-1600x963.png 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>That&#8217;s it.<\/p>\n\n\n\n<p><strong>Ready to eliminate email deliverability headaches?<\/strong>&nbsp;<\/p>\n\n\n\n<p>Give E-Warmup a\u00a0<a href=\"https:\/\/app.e-warmup.com\/signup\" data-type=\"link\" data-id=\"https:\/\/app.e-warmup.com\/signup\">try for free today<\/a>! Automated warmup and monitoring tools ensure smooth email flow and maintain a stellar sender reputation.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The error &#8220;User is authenticated but not connected&#8221; (sometimes appearing as &#8220;BAD User is authenticated but not connected&#8221; or similar) is a fairly common but&#8230;<\/p>\n","protected":false},"author":1,"featured_media":580,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_uag_custom_page_level_css":"","footnotes":""},"categories":[7],"tags":[],"class_list":["post-575","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-how-to"],"acf":[],"uagb_featured_image_src":{"full":["https:\/\/e-warmup.com\/blog\/wp-content\/uploads\/2026\/01\/Outlook-Hotmail-User-is-authenticated-but-not-connected-How-to-resolve-Solved-1.png",1380,670,false],"thumbnail":["https:\/\/e-warmup.com\/blog\/wp-content\/uploads\/2026\/01\/Outlook-Hotmail-User-is-authenticated-but-not-connected-How-to-resolve-Solved-1-150x150.png",150,150,true],"medium":["https:\/\/e-warmup.com\/blog\/wp-content\/uploads\/2026\/01\/Outlook-Hotmail-User-is-authenticated-but-not-connected-How-to-resolve-Solved-1-300x146.png",300,146,true],"medium_large":["https:\/\/e-warmup.com\/blog\/wp-content\/uploads\/2026\/01\/Outlook-Hotmail-User-is-authenticated-but-not-connected-How-to-resolve-Solved-1-768x373.png",720,350,true],"large":["https:\/\/e-warmup.com\/blog\/wp-content\/uploads\/2026\/01\/Outlook-Hotmail-User-is-authenticated-but-not-connected-How-to-resolve-Solved-1-1024x497.png",720,349,true],"1536x1536":["https:\/\/e-warmup.com\/blog\/wp-content\/uploads\/2026\/01\/Outlook-Hotmail-User-is-authenticated-but-not-connected-How-to-resolve-Solved-1.png",1380,670,false],"2048x2048":["https:\/\/e-warmup.com\/blog\/wp-content\/uploads\/2026\/01\/Outlook-Hotmail-User-is-authenticated-but-not-connected-How-to-resolve-Solved-1.png",1380,670,false],"epcl_admin_thumb":["https:\/\/e-warmup.com\/blog\/wp-content\/uploads\/2026\/01\/Outlook-Hotmail-User-is-authenticated-but-not-connected-How-to-resolve-Solved-1-100x49.png",100,49,true],"epcl_classic_post":["https:\/\/e-warmup.com\/blog\/wp-content\/uploads\/2026\/01\/Outlook-Hotmail-User-is-authenticated-but-not-connected-How-to-resolve-Solved-1-850x600.png",850,600,true],"epcl_single_standard":["https:\/\/e-warmup.com\/blog\/wp-content\/uploads\/2026\/01\/Outlook-Hotmail-User-is-authenticated-but-not-connected-How-to-resolve-Solved-1-950x500.png",950,500,true],"epcl_single_related":["https:\/\/e-warmup.com\/blog\/wp-content\/uploads\/2026\/01\/Outlook-Hotmail-User-is-authenticated-but-not-connected-How-to-resolve-Solved-1-600x450.png",600,450,true],"epcl_single_content":["https:\/\/e-warmup.com\/blog\/wp-content\/uploads\/2026\/01\/Outlook-Hotmail-User-is-authenticated-but-not-connected-How-to-resolve-Solved-1-700x340.png",700,340,true],"epcl_page_header":["https:\/\/e-warmup.com\/blog\/wp-content\/uploads\/2026\/01\/Outlook-Hotmail-User-is-authenticated-but-not-connected-How-to-resolve-Solved-1-1380x500.png",1380,500,true],"epcl_widget_thumb":["https:\/\/e-warmup.com\/blog\/wp-content\/uploads\/2026\/01\/Outlook-Hotmail-User-is-authenticated-but-not-connected-How-to-resolve-Solved-1-120x120.png",120,120,true],"epcl_large":["https:\/\/e-warmup.com\/blog\/wp-content\/uploads\/2026\/01\/Outlook-Hotmail-User-is-authenticated-but-not-connected-How-to-resolve-Solved-1.png",1380,670,false]},"uagb_author_info":{"display_name":"Mehboob Hasan Rohit","author_link":"https:\/\/e-warmup.com\/blog\/author\/e-warmup\/"},"uagb_comment_info":2,"uagb_excerpt":"The error &#8220;User is authenticated but not connected&#8221; (sometimes appearing as &#8220;BAD User is authenticated but not connected&#8221; or similar) is a fairly common but...","_links":{"self":[{"href":"https:\/\/e-warmup.com\/blog\/wp-json\/wp\/v2\/posts\/575","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/e-warmup.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/e-warmup.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/e-warmup.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/e-warmup.com\/blog\/wp-json\/wp\/v2\/comments?post=575"}],"version-history":[{"count":1,"href":"https:\/\/e-warmup.com\/blog\/wp-json\/wp\/v2\/posts\/575\/revisions"}],"predecessor-version":[{"id":579,"href":"https:\/\/e-warmup.com\/blog\/wp-json\/wp\/v2\/posts\/575\/revisions\/579"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/e-warmup.com\/blog\/wp-json\/wp\/v2\/media\/580"}],"wp:attachment":[{"href":"https:\/\/e-warmup.com\/blog\/wp-json\/wp\/v2\/media?parent=575"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/e-warmup.com\/blog\/wp-json\/wp\/v2\/categories?post=575"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/e-warmup.com\/blog\/wp-json\/wp\/v2\/tags?post=575"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}