{"id":1363,"date":"2011-06-13T09:15:08","date_gmt":"2011-06-13T13:15:08","guid":{"rendered":"http:\/\/linuxhostingsupport.net\/blog\/?p=1363"},"modified":"2013-03-20T08:44:21","modified_gmt":"2013-03-20T12:44:21","slug":"exim-451-the-server-reached-its-limit-for-processing-requests-from-your-host","status":"publish","type":"post","link":"https:\/\/linuxhostingsupport.net\/blog\/exim-451-the-server-reached-its-limit-for-processing-requests-from-your-host","title":{"rendered":"Exim: 451-The server reached its limit for processing requests from your host"},"content":{"rendered":"<p>Recently I had a problem while sending emails to a specific server and while looking at the logs I saw the following:<\/p>\n<blockquote>\n<pre><span style=\"color: #0000ff;\">451-The server has reached its limit for processing requests <\/span><\/pre>\n<pre><span style=\"color: #0000ff;\">from your host. \\n451 Please try again later. <\/span><\/pre>\n<pre><span style=\"color: #0000ff;\">T=remote_smtp defer (-53): retry time not reached for any host<\/span><\/pre>\n<\/blockquote>\n<p>The reason could either be the, exim rate limiting the number of emails OR the exim databases are corrupted. <strong><\/strong><\/p>\n<p>In such a case, you have 2 options<\/p>\n<p><strong>1)<\/strong> Increase the number of emails each domain can send per hour from <strong><\/strong><br \/>\n<span style=\"color: #3366ff;\">WHM &gt;&gt; Tweak Settings &gt;&gt; Max hourly emails.<\/span><\/p>\n<p><strong>2)<\/strong> If increasing the email limit does not help, surely the exim database is corrupted. The fix is to use the exim database tool called &#8220;<strong>exim_tidydb<\/strong>&#8220;.<\/p>\n<p>SSH to your server and execute:<\/p>\n<blockquote>\n<pre><span style=\"color: #0000ff;\"># \/usr\/sbin\/exim_tidydb -t 1d \/var\/spool\/exim retry &gt; \/dev\/null <\/span><\/pre>\n<pre><span style=\"color: #0000ff;\"># \/usr\/sbin\/exim_tidydb -t 1d \/var\/spool\/exim reject &gt; \/dev\/null <\/span><\/pre>\n<pre><span style=\"color: #0000ff;\"># \/usr\/sbin\/exim_tidydb -t 1d \/var\/spool\/exim wait-remote_smtp&gt;\/dev\/null<\/span><\/pre>\n<\/blockquote>\n<p>Once done, reinstall courier and exim using the cPanel scripts.<\/p>\n<blockquote>\n<pre><span style=\"color: #0000ff;\"># \/scripts\/courierup -- force <\/span><\/pre>\n<pre><span style=\"color: #0000ff;\"># \/scripts\/eximup --force<\/span><\/pre>\n<\/blockquote>\n<p>You should now be able to send emails from the server.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Recently I had a problem while sending emails to a specific server and while looking at the logs I saw the following:<\/p>\n<p>451-The server has reached its limit for processing requests<br \/>\nfrom your host. \\n451 Please try again later.<br \/>\nT=remote_smtp defer (-53): retry time not reached for any host<\/p>\n<p>The reason could either be the, exim rate limiting the number of emails OR the exim databases are corrupted.<br \/>\nIn such a case, you have 2 options<br \/>\n1) Increase the number of emails each domain can send per hour from<br \/>\nWHM &gt;&gt; [&#8230;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[1248,1247,1249,1250],"_links":{"self":[{"href":"https:\/\/linuxhostingsupport.net\/blog\/wp-json\/wp\/v2\/posts\/1363"}],"collection":[{"href":"https:\/\/linuxhostingsupport.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/linuxhostingsupport.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/linuxhostingsupport.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/linuxhostingsupport.net\/blog\/wp-json\/wp\/v2\/comments?post=1363"}],"version-history":[{"count":9,"href":"https:\/\/linuxhostingsupport.net\/blog\/wp-json\/wp\/v2\/posts\/1363\/revisions"}],"predecessor-version":[{"id":1366,"href":"https:\/\/linuxhostingsupport.net\/blog\/wp-json\/wp\/v2\/posts\/1363\/revisions\/1366"}],"wp:attachment":[{"href":"https:\/\/linuxhostingsupport.net\/blog\/wp-json\/wp\/v2\/media?parent=1363"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/linuxhostingsupport.net\/blog\/wp-json\/wp\/v2\/categories?post=1363"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/linuxhostingsupport.net\/blog\/wp-json\/wp\/v2\/tags?post=1363"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}