{"id":6350,"date":"2022-10-18T19:45:46","date_gmt":"2022-10-18T17:45:46","guid":{"rendered":"https:\/\/www.limilabs.com\/blog\/?p=6350"},"modified":"2023-08-09T22:25:59","modified_gmt":"2023-08-09T20:25:59","slug":"office-365-basic-auth-is-disabled","status":"publish","type":"post","link":"https:\/\/www.limilabs.com\/blog\/office-365-basic-auth-is-disabled","title":{"rendered":"Office 365: Basic Auth is disabled"},"content":{"rendered":"\n<p id=\"block-9ce9862e-7463-4c32-972e-78206140dec7\"><br>Since October 2022 Basic Auth is by default disabled for IMAP and POP3 in Exchange Online \/ Office 365. Microsoft recommends using OAuth 2.0. This is not a big problem for <a href=\"\/mail\" title=\"\">Mail.dll email client for .net<\/a> users as it support OAuth 2.0 in full.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Auth 2.0<\/h3>\n\n\n\n<p>You should <strong>switch to OAuth 2.0 <\/strong>for authentication purposes:<\/p>\n\n\n\n<p id=\"block-a86b2b1f-765a-457c-9112-355218027d2e\"><strong>Daemons\/Services:&nbsp;Password grant&nbsp;<\/strong>(MFA\/2FA must be turned off for this account):<br><a href=\"https:\/\/www.limilabs.com\/blog\/oauth2-password-grant-office365-exchange-imap-pop3-smtp\">https:\/\/www.limilabs.com\/blog\/oauth2-password-grant-office365-exchange-imap-pop3-smtp<\/a><br><br><strong>Daemons\/Services:&nbsp;Client credential<\/strong>&nbsp;flow:<br><a href=\"https:\/\/www.limilabs.com\/blog\/oauth2-client-credential-flow-office365-exchange-imap-pop3-smtp\">https:\/\/www.limilabs.com\/blog\/oauth2-client-credential-flow-office365-exchange-imap-pop3-smtp<\/a><br><br><strong>Web&nbsp;apps<\/strong> (requires user interaction):<br><a href=\"https:\/\/www.limilabs.com\/blog\/oauth2-web-flow-office365-exchange-imap-pop3-smtp\">https:\/\/www.limilabs.com\/blog\/oauth2-web-flow-office365-exchange-imap-pop3-smtp<\/a><br><br><strong>Standalone&nbsp;devices<\/strong> (requires very little interaction):<br><a href=\"https:\/\/www.limilabs.com\/blog\/oauth2-device-flow-office365-exchange-imap-pop3-smtp\">https:\/\/www.limilabs.com\/blog\/oauth2-device-flow-office365-exchange-imap-pop3-smtp<\/a><br><br><strong>Desktop&nbsp;apps<\/strong> (requires user interaction):<br><a href=\"https:\/\/www.limilabs.com\/blog\/oauth2-office365-exchange-imap-pop3-smtp\">https:\/\/www.limilabs.com\/blog\/oauth2-office365-exchange-imap-pop3-smtp<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Re-enable Basic Auth<\/h3>\n\n\n\n<p>For some time it was possible to re-enable Basic Auth for IMAP and POP3 for your tenant &#8211; it is no longer possible to do that.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Since October 2022 Basic Auth is by default disabled for IMAP and POP3 in Exchange Online \/ Office 365. Microsoft recommends using OAuth 2.0. This is not a big problem for Mail.dll email client for .net users as it support OAuth 2.0 in full. Auth 2.0 You should switch to OAuth 2.0 for authentication purposes: [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-6350","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.limilabs.com\/blog\/wp-json\/wp\/v2\/posts\/6350"}],"collection":[{"href":"https:\/\/www.limilabs.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.limilabs.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.limilabs.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.limilabs.com\/blog\/wp-json\/wp\/v2\/comments?post=6350"}],"version-history":[{"count":11,"href":"https:\/\/www.limilabs.com\/blog\/wp-json\/wp\/v2\/posts\/6350\/revisions"}],"predecessor-version":[{"id":6536,"href":"https:\/\/www.limilabs.com\/blog\/wp-json\/wp\/v2\/posts\/6350\/revisions\/6536"}],"wp:attachment":[{"href":"https:\/\/www.limilabs.com\/blog\/wp-json\/wp\/v2\/media?parent=6350"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.limilabs.com\/blog\/wp-json\/wp\/v2\/categories?post=6350"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.limilabs.com\/blog\/wp-json\/wp\/v2\/tags?post=6350"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}