{"id":57074,"date":"2024-06-17T12:43:42","date_gmt":"2024-06-17T12:43:42","guid":{"rendered":"https:\/\/logmeonce.com\/resources\/2023\/07\/28\/smtplib-smtpauthenticationerror-535-b5-7-8-username-and-password-not-accepted\/"},"modified":"2024-08-19T13:55:09","modified_gmt":"2024-08-19T13:55:09","slug":"smtplib-smtpauthenticationerror-535-b5-7-8-username-and-password-not-accepted","status":"publish","type":"post","link":"https:\/\/logmeonce.com\/resources\/smtplib-smtpauthenticationerror-535-b5-7-8-username-and-password-not-accepted\/","title":{"rendered":"Smtplib.Smtpauthenticationerror 535 B&#8217;5.7.8 Username And Password Not Accepted"},"content":{"rendered":"<div class=\"336cb5b64765e27a1a6c1bb71b941f1a\" data-index=\"1\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-4830628043307652\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<!-- above content -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-client=\"ca-pub-4830628043307652\"\r\n     data-ad-slot=\"5864845439\"\r\n     data-ad-format=\"auto\"\r\n     data-full-width-responsive=\"true\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n<p>Are you stuck with \u200dreceiving the Smtplib.Smtpauthenticationerror\u200d 535 B\u20195.7.8 \u2064Username And Password Not Accepted error message when \u2064sending emails?\u2064 Then \u200dyou are not alone! Many \u200cusers of \u200demail\u200b services, \u2063such as Gmail \u200dor Outlook, \u2063encounter this\u2062 common \u201c535\u201d error \u200bwhile emailing.\u200d This error may \u200cbe difficult to\u200d find \u2063the\u200b cause\u2064 of\u2063 due to its generic\u2064 nature yet\u200d there\u2063 are \u2063several steps you can\u200b take to try \u2064and solve\u2062 the\u200b Smtplib.Smtpauthenticationerror 535\u2063 B\u20195.7.8 Username And\u200d Password\u2063 Not \u2063Accepted\u2064 issue. In this article, we\u2019ll\u200c provide tips on how to troubleshoot \u2064this authentication error and explore the\u200d causes behind it. Furthermore, we will also provide guidance as\u2064 to how\u2063 to resolve it to\u200b ensure smooth email sending. So if you\u2019ve been \u2062having Smtpauthenticationerror \u200c535\u2064 B\u20195.7.8 \u2064Username And\u2064 Password Not Accepted issues, read \u200con to find \u2063the solutions!<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_77 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/logmeonce.com\/resources\/smtplib-smtpauthenticationerror-535-b5-7-8-username-and-password-not-accepted\/#1_What_is_SMTP_Authentication%E2%81%A2_Error_535\" >1. What is SMTP Authentication\u2062 Error 535?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/logmeonce.com\/resources\/smtplib-smtpauthenticationerror-535-b5-7-8-username-and-password-not-accepted\/#2%E2%80%8C_Troubleshooting_%E2%80%8DSMTP_Authentication_Error_535\" >2.\u200c Troubleshooting \u200dSMTP Authentication Error 535<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/logmeonce.com\/resources\/smtplib-smtpauthenticationerror-535-b5-7-8-username-and-password-not-accepted\/#3_How_To_Fix%E2%80%8C_SMTP_Authentication_%E2%81%A4Error_535\" >3. How To Fix\u200c SMTP Authentication \u2064Error 535<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/logmeonce.com\/resources\/smtplib-smtpauthenticationerror-535-b5-7-8-username-and-password-not-accepted\/#4_Keep_%E2%80%8BYour_Email_Secure_With_SMTP_%E2%81%A4Authentication_Error_535_Fix\" >4. Keep \u200bYour Email Secure With SMTP \u2064Authentication Error 535 Fix<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/logmeonce.com\/resources\/smtplib-smtpauthenticationerror-535-b5-7-8-username-and-password-not-accepted\/#Q_A\" >Q&amp;A<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/logmeonce.com\/resources\/smtplib-smtpauthenticationerror-535-b5-7-8-username-and-password-not-accepted\/#Conclusion\" >Conclusion<\/a><\/li><\/ul><\/nav><\/div>\n<h2 id=\"1-what-is-smtp-authentication-error-535\"><span class=\"ez-toc-section\" id=\"1_What_is_SMTP_Authentication%E2%81%A2_Error_535\"><\/span>1. What is SMTP Authentication\u2062 Error 535?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><b>SMTP Authentication Error 535<\/b> \u200d is \u2064an \u200derror message that occurs \u200bwhen a user\u200d attempts to log \u2063into an email account \u2062using the \u2062Simple Mail Transfer Protocol (SMTP). \u200cThis error occurs when a username or password is\u200c incorrect, or if the account\u2064 is\u2064 disabled or blocked.<\/p>\n<p>If \u2062you receive this \u200berror, here are some possible \u200bsolutions:<\/p>\n<ul>\n<li>Check if your username and password are\u2064 correct.<\/li>\n<li>Enable\u200c two-factor authentication (if \u2064available).<\/li>\n<li>Contact the email provider\u2019s support \u200bteam to see\u2064 if they are blocking your \u200daccount.<\/li>\n<li>Clear your \u200dweb browser\u2019s cache and cookies.<\/li>\n<\/ul>\n<p>In \u200cmost cases, \u200cthe above\u2063 methods should help you solve the \u200dproblem. If you\u2062 are\u2063 still\u200d experiencing\u2062 issues, \u200cyou\u2064 may need to consult an\u2063 email \u2063specialist\u2063 for further assistance.<\/p>\n<h2 id=\"2-troubleshooting-smtp-authentication-error-535\"><span class=\"ez-toc-section\" id=\"2%E2%80%8C_Troubleshooting_%E2%80%8DSMTP_Authentication_Error_535\"><\/span>2.\u200c Troubleshooting \u200dSMTP Authentication Error 535<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>When sending an\u200c email using SMTP authentication, an\u2064 error code of 535 can occur. This indicates that \u2062the authentication\u2064 process did not succeed\u200d and \u200dyour \u2064emails \u2062can\u2019t be delivered. \u2063There are\u2063 a few \u200csteps you\u2062 can \u200btake to troubleshoot this error.<\/p>\n<ul>\n<li><strong>Check\u200c User Credentials:<\/strong> \u200bEnsure that you are entering\u200b the correct email\u2062 address and password of\u200d the account\u2062 in the \u200dSMTP authentication\u200b settings.<\/li>\n<li><strong>Incorrect Server Details:<\/strong> \u200cDouble-check \u200dyour SMTP authentication server details\u200b as these are also important for successful authentication.<\/li>\n<li><strong>Check Security Settings:<\/strong> If you are using more secure authentication methods\u2063 like\u200b OAuth 2.0, ensure that\u200b the\u200c settings have been properly implemented.<\/li>\n<li><strong>Enable SMTP Authentication:<\/strong>You \u2064may\u2064 need\u200c to double-check that your\u2062 SMTP \u200dauthentication feature\u2064 is enabled for outbound\u200b messages.<\/li>\n<\/ul>\n<p>Once these steps have\u2064 been completed, \u200cyou \u2063should try\u200b sending an email again through the SMTP server. If the authentication \u2063error 535 persists, you\u200b may need \u200bto contact your\u2063 relevant email provider \u2063to\u2062 further investigate the cause.<\/p>\n<h2 id=\"3-how-to-fix-smtp-authentication-error-535\"><span class=\"ez-toc-section\" id=\"3_How_To_Fix%E2%80%8C_SMTP_Authentication_%E2%81%A4Error_535\"><\/span>3. How To Fix\u200c SMTP Authentication \u2064Error 535<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>SMTP Authentication \u2062Error \u2062535 is\u2062 a \u200bcommon problem for many email users. These \u200bsteps can help \u2063you troubleshoot \u2064the issue:<\/strong><\/p>\n<ul>\n<li>Check \u2062your \u200dSMTP settings and\u2064 ensure they \u2064are\u2063 correct.<\/li>\n<li>Ensure \u2063that\u200c your username \u2063and password are correct.<\/li>\n<li>Check your antivirus\u2062 and firewall\u200b settings and make sure\u2063 they are not preventing your \u200demails \u200bfrom being\u2064 sent.<\/li>\n<li>Verify that your account information is up-to-date and correct.<\/li>\n<\/ul>\n<p>If\u200c none \u200cof the above steps have \u200bresolved your issue, it \u200dmay \u2062be caused by a third-party service \u200dor a network issue. To\u2064 troubleshoot this issue, contact your ISP (Internet Service\u200c Provider). They will be able to \u200bmake\u2063 sure your network connection is working \u200bproperly and isn\u2019t\u200d causing\u200c a conflict with the SMTP server.<\/p>\n<p>If\u2063 the issue \u200cpersists even \u200bafter talking to your\u2063 ISP,\u2064 you may\u2062 want\u200d to consider \u2063an alternative SMTP\u200d server \u200cthat is\u2062 more\u200c reliable. \u2063A <a href=\"https:\/\/logmeonce.com\/team-password-manager\/\" data-wplink-edit=\"true\">professional email\u2063 hosting\u200d service<\/a> may be a\u200d better option for\u2063 some\u2062 businesses, \u2063as they are\u2064 generally\u2062 more secure\u2062 and reliable than \u2062free services.<\/p>\n<h2 id=\"4-keep-your-email-secure-with-smtp-authentication-error-535-fix\"><span class=\"ez-toc-section\" id=\"4_Keep_%E2%80%8BYour_Email_Secure_With_SMTP_%E2%81%A4Authentication_Error_535_Fix\"><\/span>4. Keep \u200bYour Email Secure With SMTP \u2064Authentication Error 535 Fix<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Sending \u200cand receiving emails securely\u200b is paramount. \u200dSMTP Authentication Error 535 can create \u2064headaches for you if not resolved correctly. \u200cHere is what you need \u2064to know\u200b about SMTP \u200cAuthentication Error 535 \u200cand\u2063 how to fix it.<\/p>\n<ul>\n<li>SMTP Authentication\u2064 Error 535\u2062 is an\u200d issue between the sender\u2019s email server and your server.<\/li>\n<li>In \u2063order to \u2062fix Error 535, you need \u2064to \u2063ensure that the authentication \u2064credentials set up between the two servers are correct and \u2064can communicate properly.<\/li>\n<li>The 5th \u2064step to\u2063 fixing \u2064Error 535 is\u200b to configure a whitelist of IPs (IPv4 and\/or IPv6) or IP ranges that\u2063 can be connected to your server.<\/li>\n<\/ul>\n<p><strong>There are additional steps\u2064 to \u200bremedy\u200c SMTP\u2063 Authentication Error \u200b535<\/strong> like making sure the email address of\u200b the sender and\u200d recipient have no typos or any invalid \u2064character. To guarantee that these issues do not occur often, you should review your email sending\u200b configurations \u200devery few months.<\/p>\n<h2 id=\"qa\"><span class=\"ez-toc-section\" id=\"Q_A\"><\/span>Q&amp;A<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Q:\u2064 What is \u2062Smtplib.Smtpauthenticationerror 535 B\u20195.7.8?<br \/>\nA: Smtplib.Smtpauthenticationerror 535 \u200cB\u20195.7.8 is\u200d an error\u200c that occurs when \u2064trying to log in to an email account\u2063 and the username and password\u2063 provided were not\u2062 accepted.<\/p>\n<h2 id=\"outro\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Don\u2019t waste\u2064 any more\u2063 of your precious time struggling with \u201cSmtplib.Smtpauthenticationerror 535 B\u20195.7.8 Username And \u200cPassword Not Accepted\u201d. Instead, simplify your life\u200b and \u200dget your\u200b authentication \u200cneeds\u200b covered in a \u2063jiffy\u200d by signing up for a FREE \u200dLogMeOnce account. LogMeOnce is a credible and reliable authentication service \u2062which \u2062is specifically\u2064 designed to provide \u200ba solution\u200c for Smtplib.Smtpauthenticationerror 535\u200b B\u20195.7.8 Username And Password Not \u200bAccepted. Sign\u2063 up LogMeOnce today and enjoy\u2063 the convenience \u2063and\u2064 security \u200bof \u200cadvanced authentication\u2063 on the go! With \u200bLogMeOnce, \u2064never worry again about \u2063\u201cSmtplib.Smtpauthenticationerror \u200c535 B\u20195.7.8 \u2062Username \u2064And Password Not Accepted\u201d authentication \u2062errors.<\/p>\n\n\n<figure class=\"wp-block-embed is-type-rich is-provider-spotify wp-block-embed-spotify wp-embed-aspect-21-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"Spotify Embed: Smtplib.Smtpauthenticationerror 535 B\u20195.7.8 Username And Password Not Accepted\" style=\"border-radius: 12px\" width=\"100%\" height=\"152\" frameborder=\"0\" allowfullscreen allow=\"autoplay; clipboard-write; encrypted-media; fullscreen; picture-in-picture\" loading=\"lazy\" src=\"https:\/\/open.spotify.com\/embed\/episode\/7GCb5MwlyvkqEc6eMEbaoS?utm_source=oembed\"><\/iframe>\n<\/div><\/figure>\n\n<div style=\"font-size: 0px; height: 0px; line-height: 0px; margin: 0; padding: 0; clear: both;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Are you stuck with \u200dreceiving the Smtplib.Smtpauthenticationerror\u200d 535 B\u20195.7.8 \u2064Username And Password Not Accepted error message when \u2064sending emails?\u2064 Then \u200dyou are not alone! Many \u200cusers of \u200demail\u200b services, \u2063such as Gmail \u200dor Outlook, \u2063encounter this\u2062 common \u201c535\u201d error \u200bwhile emailing.\u200d This error may \u200cbe difficult to\u200d find \u2063the\u200b cause\u2064 of\u2063 due to its generic\u2064 [&hellip;]<\/p>\n","protected":false},"author":14,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[89],"tags":[18659,18660,18661,18662,18663,14051],"class_list":["post-57074","post","type-post","status-publish","format-standard","hentry","category-password-manager","tag-5-7-8","tag-18660","tag-notaccepted","tag-smtpauthenticationerror","tag-smtplib","tag-usernameandpassword"],"acf":[],"_links":{"self":[{"href":"https:\/\/logmeonce.com\/resources\/wp-json\/wp\/v2\/posts\/57074","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/logmeonce.com\/resources\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/logmeonce.com\/resources\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/logmeonce.com\/resources\/wp-json\/wp\/v2\/users\/14"}],"replies":[{"embeddable":true,"href":"https:\/\/logmeonce.com\/resources\/wp-json\/wp\/v2\/comments?post=57074"}],"version-history":[{"count":0,"href":"https:\/\/logmeonce.com\/resources\/wp-json\/wp\/v2\/posts\/57074\/revisions"}],"wp:attachment":[{"href":"https:\/\/logmeonce.com\/resources\/wp-json\/wp\/v2\/media?parent=57074"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/logmeonce.com\/resources\/wp-json\/wp\/v2\/categories?post=57074"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/logmeonce.com\/resources\/wp-json\/wp\/v2\/tags?post=57074"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}