We have collected information about Delivery Status Notification Code 4 4 7 for you. Follow the links to find out details on Delivery Status Notification Code 4 4 7.
https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/non-delivery-reports-in-exchange-online/fix-error-code-550-4-4-7-in-exchange-online
#550 4.4.7 QUEUE.Expired; message expired ## The message was considered too old by the rejecting system, either because it remained on that host too long or because the time-to-live value specified by the sender of the message was exceeded. 450 4.7.0 Proxy session setup failed on Frontend with '451 4.4.0 Primary target IP address responded with ...
https://thebackroomtech.com/2008/03/28/troubleshooting-exchange-error-447-delivery-delay-and-failures/
This is an automatically generated Delivery Status Notification. THIS IS A WARNING MESSAGE ONLY. ... Please retry or contact your administrator. <originating.mailserver.hostname #4.4.7> ... This code …Author: Aseem Kishore
https://answers.microsoft.com/en-us/outlook_com/forum/oemail-osend/delivery-status-notification-447/7311e82c-5051-4da2-8c66-b4edfcf69076
Apr 30, 2014 · ONLY happens the first Friday of every month. Second month in a row with this BS. Send emails out during the day Friday. Get delay notices on Friday night/Saturday morning (email send time +12 hours). Will get failure notices Saturday/Sunday (+48 hours form send time). Emails going to too many different domains for them all to be down (4.4.7).
https://www.experts-exchange.com/questions/22620735/E-mail-Delayed-Delayed-Failed-Status-4-4-7.html
I worked on this problem for nearly a week non-stop. I searched hundreds of online articles and tens of certified knowledge bases trying everything from firewall settings (MTU, SMTP filtering, etc&), to client settings (disabling local AV, reconfiguring SMTP clients), to Exchange connectors (smart hosts, use certain virtual servers), to disabling EDNS-0 to name a few.
https://social.technet.microsoft.com/Forums/exchange/en-US/491b9f98-c68c-4e7d-afbd-3a36f1cf0a00/email-delivery-failure-error-447-exchange-2003
Jun 19, 2012 · I'm having the exact same problem on my SBS2003 server. It also apparently came out of nowhere. In addition to your information, I have found that rebooting the server makes all of the email flow normally again for about a week.
https://docs.microsoft.com/en-us/exchange/manage-dsn-messages-exchange-2013-help
Microsoft Exchange Server 2013 uses delivery status notifications (DSN) to provide non-delivery reports (NDRs) and other status messages to message senders. You can use the built-in DSNs, or you can create custom DSN messages to meet the needs of your organization. ... This example adds the DSN code 5.7.5 and removes the DSN code 5.7.1 from the ...
https://community.spiceworks.com/topic/12904-email-sending-delayed-4-4-7-generated
Apr 14, 2008 · Yes, we get a 4.4.7 NDR, but that is from my mailserver, as we cannot conect to theirs. I will see if our ISP can change the PTR to reflect our rDNS (prt.ssha.ca to mx2.slmhc.on.ca). Although Im not certain how that would affect them sending us mail. Would it be advisable to try setting up a SMTP connector between our 2 servers?
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