{"id":1549,"date":"2021-11-22T11:18:45","date_gmt":"2021-11-22T11:18:45","guid":{"rendered":"https:\/\/www.velaninfo.com\/rs\/?post_type=techtips&#038;p=1549"},"modified":"2021-11-22T11:22:15","modified_gmt":"2021-11-22T11:22:15","slug":"how-to-fix-smtp-error-codes","status":"publish","type":"techtips","link":"https:\/\/www.velaninfo.com\/rs\/techtips\/how-to-fix-smtp-error-codes\/","title":{"rendered":"How to fix SMTP error: Message size exceeds server limit in Roundcube?"},"content":{"rendered":"<p>Are you getting SMTP error message, &#8216;Size exceeds server limit&#8217; in Roundcube Webmail? Does it cause a problem and do you want to fix it?<\/p>\n<p>What exactly does this SMTP error message: &#8216;Size exceeds server limit&#8217; mean?<\/p>\n<p>Are you facing issues with large email attachments? Do they surpass the upload limit despite the fact that the attachment size is within the limit?<\/p>\n<p>You&#8217;ve arrived at the right location!<\/p>\n<p>Most emails are encrypted in Base64, before they are sent out. This increases the email&#8217;s size and may trigger the ModSec upload limit regulations. Even though the email size appears to be below the limit when sent, this prevents it from being sent.<\/p>\n<p>So, how can we fix an SMTP error problem that says the message size exceeds the server limit in Roundcube webmail?<\/p>\n<p>Increasing the message size limit in the Exim Configuration Manager is a good technique to fix this error. To do this, please follow the steps recommended below.<\/p>\n<ol>\n<li>To begin with, navigate to Service Configuration.<\/li>\n<li>Then, go to Exim Configuration Manager.<\/li>\n<li>After that, go to Advanced Editor.<\/li>\n<li>Next, select CONFIG sections.<\/li>\n<li>Finally, select message_size_limit.<\/li>\n<\/ol>\n<p>This should fix SMTP error message, &#8216;Size exceeds server limit&#8217; in Roundcube Webmail. Also note that, you can add any message size limit, as a new configuration element in the CONFIG section, if it is not automatically listed.<\/p>\n<p>Our server support engineers at Velan, can help you install, configure and troubleshoot <a href=\"https:\/\/www.velaninfo.com\/rs\/tech-tips\/cpanel-whm\/\"><strong>WHM\/cPanel servers<\/strong><\/a>. If you would like to avail our service, please fill the <a href=\"https:\/\/www.velaninfo.com\/contact\"><strong>Quick connect form<\/strong><\/a>, to get in touch with us.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Are you getting SMTP error message, &#8216;Size exceeds server limit&#8217; in Roundcube Webmail? Does it cause a problem and do you want to fix it? What exactly does this SMTP error message: &#8216;Size exceeds server limit&#8217; mean? Are you facing issues with large email attachments? Do they surpass the upload limit despite the fact that&#8230;<a class=\"continue-reading text-uppercase\" href=\"https:\/\/www.velaninfo.com\/rs\/techtips\/how-to-fix-smtp-error-codes\/\"> Continue Reading <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.velaninfo.com\/rs\/wp-content\/themes\/velaninfo\/images\/reading_arw.png\" alt=\"Continue Reading\" width=\"16\" height=\"12\"\/><\/a><\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"footnotes":""},"tags":[],"class_list":["post-1549","techtips","type-techtips","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v19.5 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>SMTP error code in Roundcube: Message size exceeds server limit | Velan<\/title>\n<meta name=\"description\" content=\"Fix Roundcube SMTP error 250 authentications failed usually occurs when 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