{"id":625,"date":"2014-11-06T16:11:23","date_gmt":"2014-11-06T14:11:23","guid":{"rendered":"http:\/\/dety.net.ua\/?p=625"},"modified":"2014-11-06T16:11:23","modified_gmt":"2014-11-06T14:11:23","slug":"exchange-2010-delayed-incoming-mail-hours","status":"publish","type":"post","link":"https:\/\/dety.net.ua\/?p=625","title":{"rendered":"Exchange 2010 + Delayed incoming mail (hours)"},"content":{"rendered":"<p>Once our recipients complained to me about delays in receiving mail from web-service.<\/p>\n<p>I checked the logs for smtp-receiver and found e.g.: <em>Tarpit for &#8216;0.00:00:00.312&#8217; due to &#8216;DelayedAck&#8217;,Delivered\u00a0<\/em><\/p>\n<p>In my case I have Exchange behind SPAM-Filter ,so I clean delays for all my receive-connectors with the command:<\/p>\n<blockquote><p>get-ReceiveConnector | Set-receiveconnector -tarpitinterval 00:00:00<br \/>\nget-ReceiveConnector | Set-receiveconnector -maxacknowledgementdelay 0<\/p><\/blockquote>\n<p>Check it:<\/p>\n<blockquote><p>get-ReceiveConnector | select name,tarpitinterval, maxacknowledgementdelay<\/p>\n<p>Name\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 TarpitInterval\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 MaxAcknowledgementDelay<br \/>\n&#8212;-\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 &#8212;&#8212;&#8212;&#8212;&#8211;\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<br \/>\nClient\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 00:00:00\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 00:00:00<br \/>\nDefault\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 00:00:00\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 00:00:00<\/p><\/blockquote>\n<p>These delays happen when a remote mail server is configured improperly and use local names for it.<\/p>\n<p>It looks like a spammer for a receiving server and it has the default settings:\u00a0TarpitInterval = 5min, MaxAcknowledgementDelay = 30min<\/p>\n<p>If there are a lot of e-mails the delay will increase.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Once our recipients complained to me about delays in receiving mail from web-service. I checked the logs for smtp-receiver and found e.g.: Tarpit for &#8216;0.00:00:00.312&#8217; due to &#8216;DelayedAck&#8217;,Delivered\u00a0 In my case I have Exchange behind SPAM-Filter ,so I clean delays for all my receive-connectors with the command: get-ReceiveConnector | Set-receiveconnector -tarpitinterval 00:00:00 get-ReceiveConnector | Set-receiveconnector [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,13],"tags":[],"class_list":["post-625","post","type-post","status-publish","format-standard","hentry","category-exchange","category-novosti"],"_links":{"self":[{"href":"https:\/\/dety.net.ua\/index.php?rest_route=\/wp\/v2\/posts\/625","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dety.net.ua\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dety.net.ua\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dety.net.ua\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dety.net.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=625"}],"version-history":[{"count":1,"href":"https:\/\/dety.net.ua\/index.php?rest_route=\/wp\/v2\/posts\/625\/revisions"}],"predecessor-version":[{"id":626,"href":"https:\/\/dety.net.ua\/index.php?rest_route=\/wp\/v2\/posts\/625\/revisions\/626"}],"wp:attachment":[{"href":"https:\/\/dety.net.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=625"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dety.net.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=625"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dety.net.ua\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=625"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}