{"id":30150,"date":"2021-01-18T03:20:45","date_gmt":"2021-01-17T19:20:45","guid":{"rendered":"https:\/\/web.mwwsb.com.my\/pjci\/?post_type=kb&#038;p=30150"},"modified":"2022-09-08T20:17:34","modified_gmt":"2022-09-08T12:17:34","slug":"cannot-deliver-emails-to-yahoo-mail","status":"publish","type":"kb","link":"https:\/\/www.casbay.com\/guide\/kb\/cannot-deliver-emails-to-yahoo-mail","title":{"rendered":"Cannot deliver emails to Yahoo Mail"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"30150\" class=\"elementor elementor-30150\" data-elementor-post-type=\"kb\">\n\t\t\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-081de35 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"081de35\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-33b4316\" data-id=\"33b4316\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c633c9a elementor-widget elementor-widget-heading\" data-id=\"c633c9a\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Yahoo Mail Delivery Issue<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f6c463b elementor-widget elementor-widget-text-editor\" data-id=\"f6c463b\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Cannot deliver emails to Yahoo Mail \/ receive bounce back errors like this:<br \/><em>553 Mail from not allowed \u2013 VS98-IP0 deferred\u00a0<\/em><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-844db8c elementor-widget elementor-widget-heading\" data-id=\"844db8c\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Resolutions<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-35ef357 elementor-widget elementor-widget-text-editor\" data-id=\"35ef357\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>The mission of Yahoo! Mail is to deliver messages deliver emails to Yahoo Mail that users want to receive, and filter out messages they don\u2019t want. The simplest way to ensure that your messages are delivered, then, is to avoid looking like a spammer. Below are a few suggestions on how to do so.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bed3097 elementor-widget elementor-widget-heading\" data-id=\"bed3097\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">1. Send emails only to those that want it<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c730f2 elementor-widget elementor-widget-text-editor\" data-id=\"0c730f2\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Spammers write to many people who don\u2019t want their mail, so our anti-spam filters are designed to identify that behavior. To avoid being perceived as a spammer, use an opt-in method of subscription for your mailing list. Better yet, utilize a confirmed opt-in process where subscribers actively verify their intent to receive your mailings by clicking on a confirmation email before being added to your list.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-719a487 elementor-widget elementor-widget-heading\" data-id=\"719a487\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">2. Use email authentication such as DKIM<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-80df6d3 elementor-widget elementor-widget-text-editor\" data-id=\"80df6d3\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>This will help us identify that the email is legitimately from you and, if you sign all your email, it will help us identify forgeries, too. In addition, using dedicated domains for different mail streams (e.g., transactional messages vs. marketing emails) is also a recommended practice.\u00a0<a title=\"Click to follow link http:\/\/www.dkim.org\/\" href=\"http:\/\/www.dkim.org\/\" target=\"_blank\" rel=\"noopener noreferrer nofollow\" link=\"external\" class=\"broken_link\">DKIM.org<\/a>\u00a0is a good resource for information about DKIM.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-87c327a elementor-widget elementor-widget-heading\" data-id=\"87c327a\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">3. Segregate your mail streams<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-95daf21 elementor-widget elementor-widget-text-editor\" data-id=\"95daf21\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Segregate the mail streams by IP addresses and\/or domains since Yahoo! Mail keeps reputation data about each IP address and domain you send from. For example, by segmenting the mail stream that delivers marketing mail from another that sends transactional messages, you make it easier for Yahoo! Mail to determine and assign each mail stream\u2019s reputation.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6f9963c elementor-widget elementor-widget-heading\" data-id=\"6f9963c\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">4. Consistently manage your lists <\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-339cd70 elementor-widget elementor-widget-text-editor\" data-id=\"339cd70\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Manage your lists by paying attention to hard and soft bounces as well as inactive recipients. Persistent emails to these addresses are a surefire way to get your connections deferred. If your messages are being blocked, look closely at any SMTP Reply Codes our mail servers are returning to you and be sure you\u2019re addressing the problem.<\/p><ul><li style=\"list-style-type: none;\"><ul><li><strong>Don\u2019t retry 5xx messages.\u00a0<\/strong>If we reject a message with a 5xx error, we will not accept it anytime soon. Retrying the message wastes both our resources and makes you appear to have a dirty list.<br \/><br \/><\/li><li><strong>Do retry 4xx messages.\u00a0<\/strong>If we send a 4xx error, this is a temporary error and we encourage you to try sending the message at a later time.<br \/><br \/><\/li><li><strong>Do refresh your list periodically.\u00a0<\/strong>Consider removing or sending a reconfirmation email to inactive subscribers, i.e., users who have not opened or clicked on your emails for a period of time. Sending your mail to users who are not reading them, or who may even mark them as \u201cspam,\u201d will almost certainly hurt your delivery metrics and reputation.<\/li><\/ul><\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6df8a53 elementor-widget elementor-widget-heading\" data-id=\"6df8a53\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">5. Respect the user\u2019s mailbox<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1f0b318 elementor-widget elementor-widget-text-editor\" data-id=\"1f0b318\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>If a customer entrusts an email address to you during a transaction or for a particular newsletter, they do not expect to receive unrelated messages, such as extraneous marketing emails, in the process. Adding email addresses to other lists without their explicit opt-in is a guaranteed way to lose a customer\u2019s trust.<br \/><br \/>Honor the frequency of the list\u2019s intent. If customers believe they are signing up for a monthly newsletter but they start receiving messages on a weekly basis, such a practice will likely prompt users to label your messages as spam.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2528c1c elementor-widget elementor-widget-heading\" data-id=\"2528c1c\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">6. Use a consistent \u201cFrom:\u201d header address<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a4603e2 elementor-widget elementor-widget-text-editor\" data-id=\"a4603e2\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Your domain name is an important element of your brand. Using it consistently helps us and your recipients to distinguish your email from spam. Additionally, using a static From: address helps users who have set up filters to route messages to a specific folder.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4cc070b elementor-widget elementor-widget-heading\" data-id=\"4cc070b\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">7. Pay attention to your email\u2019s content<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-caa1f5e elementor-widget elementor-widget-text-editor\" data-id=\"caa1f5e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul><li>Test your email\u2019s look and feel with image placeholders. Many users won\u2019t see images in your email by default.<br \/><br \/><\/li><li>Link to domains, not IP addresses. The Yahoo! Mail client warns users that IP address links are dangerous.<br \/><br \/><\/li><li>Use standard ports. The Yahoo! Mail client warns users that links containing ports are dangerous.<br \/><br \/><\/li><li>Don\u2019t include HTML forms in emails. The Yahoo! Mail client warns users that submitting forms in email can be dangerous.<br \/><br \/><\/li><li>Don\u2019t include Javascript in emails. The javascript is stripped out and will not run.<br \/><br \/><\/li><li>Don\u2019t include embedded objects in emails (like flash or ActiveX). The objects are stripped and will not run.<\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-67c2ad0 elementor-widget elementor-widget-heading\" data-id=\"67c2ad0\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">8. Honor unsubscribe requests as fast as you honor subscribe requests<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-824378d elementor-widget elementor-widget-text-editor\" data-id=\"824378d\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>When a user unsubscribes, they don\u2019t want to receive that mail anymore. Promptly removing them from the list should help prevent users from marking your messages as spam in the future.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-28caaf5 elementor-widget elementor-widget-heading\" data-id=\"28caaf5\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">9. Be CAN-SPAM compliant<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3654d37 elementor-widget elementor-widget-text-editor\" data-id=\"3654d37\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Regardless of where in the world you\u2019re sending your mail, make sure that you adhere to the requirements stipulated by the\u00a0<a title=\"Click to follow link http:\/\/business.ftc.gov\/documents\/bus61-can-spam-act-compliance-guide-business\" href=\"http:\/\/business.ftc.gov\/documents\/bus61-can-spam-act-compliance-guide-business\" target=\"_blank\" rel=\"noopener noreferrer nofollow\" link=\"external\" class=\"broken_link\">CAN-SPAM Act<\/a>.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-624834f elementor-widget elementor-widget-heading\" data-id=\"624834f\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">10. Publish reverse DNS (PTR) records for your sending IPs<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-76b484f elementor-widget elementor-widget-text-editor\" data-id=\"76b484f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>If there is no reverse DNS entry for your IP address, or if it looks like a dynamically-assigned IP instead of a static mail server, Yahoo! is more likely to downgrade its sending reputation.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c855214 elementor-widget elementor-widget-heading\" data-id=\"c855214\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">11. Secure your mail servers<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-582b963 elementor-widget elementor-widget-text-editor\" data-id=\"582b963\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Ensure your mail servers are not open to abuse. If your servers act as \u201copen proxies\u201d or \u201crelays,\u201d spammers may attempt to send their own mail from your systems. Keep your software up to date with the latest security patches, and always filter user-generated content before sending it out, to help prevent spammers from using your resources and tarnishing your reputation.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ba1e6ea elementor-widget elementor-widget-heading\" data-id=\"ba1e6ea\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">12. Use common-sense settings<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-39b25c1 elementor-widget elementor-widget-text-editor\" data-id=\"39b25c1\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>While we have not published guidelines for numbers of connections you can concurrently use, we ask that you treat our resources with respect. The more you take, the fewer there are for others, which may force us to defer your connections.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-87f4407 elementor-widget elementor-widget-text-editor\" data-id=\"87f4407\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Read more on <a href=\"https:\/\/www.casbay.com.my\/guide\/kb\/how-to-create-new-folders-in-smartermail\/\">How to Create new folders in SmarterMail<\/a>.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Yahoo Mail Delivery Issue Cannot deliver emails to Yahoo Mail \/ receive bounce back errors like this: 553 Mail from not allowed \u2013 VS98-IP0 deferred\u00a0 Resolutions The mission of Yahoo! Mail is to deliver messages deliver emails to Yahoo Mail that users want to receive, and filter out messages they don\u2019t want. The simplest way [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"no-sidebar","site-content-layout":"page-builder","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}}},"kbtopic":[49],"kbtag":[106],"mkb_version":[],"_links":{"self":[{"href":"https:\/\/www.casbay.com\/guide\/wp-json\/wp\/v2\/kb\/30150"}],"collection":[{"href":"https:\/\/www.casbay.com\/guide\/wp-json\/wp\/v2\/kb"}],"about":[{"href":"https:\/\/www.casbay.com\/guide\/wp-json\/wp\/v2\/types\/kb"}],"author":[{"embeddable":true,"href":"https:\/\/www.casbay.com\/guide\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.casbay.com\/guide\/wp-json\/wp\/v2\/comments?post=30150"}],"version-history":[{"count":1,"href":"https:\/\/www.casbay.com\/guide\/wp-json\/wp\/v2\/kb\/30150\/revisions"}],"predecessor-version":[{"id":36526,"href":"https:\/\/www.casbay.com\/guide\/wp-json\/wp\/v2\/kb\/30150\/revisions\/36526"}],"wp:attachment":[{"href":"https:\/\/www.casbay.com\/guide\/wp-json\/wp\/v2\/media?parent=30150"}],"wp:term":[{"taxonomy":"kbtopic","embeddable":true,"href":"https:\/\/www.casbay.com\/guide\/wp-json\/wp\/v2\/kbtopic?post=30150"},{"taxonomy":"kbtag","embeddable":true,"href":"https:\/\/www.casbay.com\/guide\/wp-json\/wp\/v2\/kbtag?post=30150"},{"taxonomy":"mkb_version","embeddable":true,"href":"https:\/\/www.casbay.com\/guide\/wp-json\/wp\/v2\/mkb_version?post=30150"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}