{"id":67,"date":"2006-07-28T13:22:37","date_gmt":"2006-07-28T11:22:37","guid":{"rendered":"http:\/\/contoso.se\/blog\/?p=67"},"modified":"2006-12-29T00:01:36","modified_gmt":"2006-12-28T22:01:36","slug":"vad-hander-med-mailflow-under-maintenance-mode","status":"publish","type":"post","link":"http:\/\/contoso.se\/blog\/?p=67","title":{"rendered":"What happens to mailflow during maintenance mode?"},"content":{"rendered":"<p><font face=\"Calibri\" size=\"3\">What happens to mailflow during maintenance mode?<\/font><\/p>\n<p><font face=\"Calibri\" size=\"3\">There is a function in Exchange MP that test mailflow between mailservers. A friend asked me what happens to those test if one mail server is in maintenance mode? <\/font><\/p>\n<p><font face=\"Calibri\" size=\"3\">I have two mail servers, MX01 and MX02. I run the wizard and setup mailflow test between them. After a while I start receive notifications every 10 minute that MX02 has sent a e-mail and MX01 received it. <\/font><\/p>\n<p><font face=\"Calibri\" size=\"3\">I put MX01 into maintenance mode and waits 5 minutes to make sure that the maintenance mode flag has been changed in the OnePoint database, then I shut down MX01. <\/font><\/p>\n<p><font face=\"Calibri\" size=\"3\">During the time when MX01 is in maintenance mode there still is events that MX02 has sent e-mails and all local test is ok. There is no alerts. <\/font><\/p>\n<p><font face=\"Calibri\" size=\"3\">30 minutes later when MX01 returns from maintenance mode I received two alerts about missing heartbeat, that is normal because the server is still down. <\/font><\/p>\n<p><font face=\"Calibri\" size=\"3\">10 minutes later I start MX01 again, all normal events under events in operator console. Mailflow events start coming back again, both that MX02 sends and MX01 receives. 10 minutes later this error is generated from MX01<\/font><\/p>\n<p><code>Computer: MX01<br \/>\nDescription:<br \/>\nSpecified delivery latency of mail flow messages exceeded. Detailed information:<br \/>\nDelivery latency from MX02 (at Fri Jul 28 12:19:01 UTC+0200 2006) = 2926 (seconds)<br \/>\nDelivery latency from MX02 (at Fri Jul 28 12:49:00 UTC+0200 2006) = 1127 (seconds)<br \/>\nDelivery latency from MX02 (at Fri Jul 28 12:34:00 UTC+0200 2006) = 2027 (seconds)<br \/>\nDelivery latency from MX02 (at Fri Jul 28 13:04:00 UTC+0200 2006) = 227 (seconds)<br \/>\nThis event was generated by the script: \"Exchange 2003 - Mail flow receiver\"<br \/>\n<\/code><br \/>\n<font face=\"Calibri\" size=\"3\">2000 seconds is around 30 minutes, the same as the maintenance mode. \u00c2\u00a0<\/font><\/p>\n<p><font size=\"3\" \/><font face=\"Calibri\" size=\"3\">Summary: There is no alert generated when one of the mail servers is in maintenance mode. \u00c2\u00a0At least not the first 30 minutes. <\/font><\/p>\n","protected":false},"excerpt":{"rendered":"<p>What happens to mailflow during maintenance mode? There is a function in Exchange MP that test mailflow between mailservers. A friend asked me what happens to those test if one mail server is in maintenance mode? I have two mail servers, MX01 and MX02. I run the wizard and setup mailflow test between them. After &hellip; <a href=\"http:\/\/contoso.se\/blog\/?p=67\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"categories":[2],"tags":[],"_links":{"self":[{"href":"http:\/\/contoso.se\/blog\/index.php?rest_route=\/wp\/v2\/posts\/67"}],"collection":[{"href":"http:\/\/contoso.se\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/contoso.se\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/contoso.se\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/contoso.se\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=67"}],"version-history":[{"count":0,"href":"http:\/\/contoso.se\/blog\/index.php?rest_route=\/wp\/v2\/posts\/67\/revisions"}],"wp:attachment":[{"href":"http:\/\/contoso.se\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=67"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/contoso.se\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=67"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/contoso.se\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=67"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}