Status: 4.3.0 Recipient's mailbox busy? [message #122627] |
Mon, 06 July 2015 18:58  |
j.a.duke
Messages: 239 Registered: October 2006
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I've moved our server to KC 8.5.1 (from 8.4.3) and faster hardware and, especially, disk and on one account am seeing this in the Mail log:
Recipient: <user<_at_>example.com>, Result: delayed, Status: 4.3.0 Recipient's mailbox busy
Every message for this account (and only this account) has this error. A few seconds later it is delivered, but I'm trying to figure why just this one account and what is causing the message to be generated.
Any suggestions on where to start troubleshooting?
Thanks.
Cheers,
Jon
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