Comments on: Exchange 2003 – Greylisting and Delayed NDR’s http://andyparkes.co.uk/blog/index.php/2009/05/01/exchange-2003-greylisting-and-delayed-ndrs/ Professional Geek Tue, 27 Jul 2010 08:59:24 +0000 hourly 1 http://wordpress.org/?v=3.0 By: Andrew Dickinson http://andyparkes.co.uk/blog/index.php/2009/05/01/exchange-2003-greylisting-and-delayed-ndrs/comment-page-1/#comment-698 Andrew Dickinson Mon, 29 Jun 2009 14:42:33 +0000 http://andyparkes.co.uk/blog/index.php/2009/05/01/exchange-2003-greylisting-and-delayed-ndrs/#comment-698 I've a problem like this with Exchange 2003 SP2 where emailing to *.scot.nhs.uk has the greylisting error. However my company uses a disclaimer solution called DisclaimIT and it for some reason after the 451 ******@****.nhs.uk>… Requested mail action not taken: mailbox unavailable Exchange drops the message and resends without using any of the Disclaimer software so we get emails without signatures. According to the software developer of DisclaimIT it's another big bug in Exchange 2003. In our case an email is sent to 4 different servers linked to *.scot.nhs.uk before being accepted. I’ve a problem like this with Exchange 2003 SP2 where emailing to *.scot.nhs.uk has the greylisting error. However my company uses a disclaimer solution called DisclaimIT and it for some reason after the 451 ******@****.nhs.uk>… Requested mail action not taken: mailbox unavailable
Exchange drops the message and resends without using any of the Disclaimer software so we get emails without signatures.

According to the software developer of DisclaimIT it’s another big bug in Exchange 2003.

In our case an email is sent to 4 different servers linked to *.scot.nhs.uk before being accepted.

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