Everytime I send mail to a particular domain, its just getting stuck in the mail.box its not flagged or tagged, there is nothing recorded in the log.nsf file, no attempt is made that I can see anywhere to send it. It does not get "bounced back" and no errors are returned to the sender, or any undeliverable message generated (except after 24 hours). It just sits in the mail.box and does nothing. Yet other outgoing emails are sent no problem...as soon as they are created and sent, they vanish from mail.box queue within seconds.
once an email is sent to this domain, it gets stuck in mail.box and then after 24 hours have passed, this is what is returned to the user
Delivery Failure Report
Your document: Re: KLaraid
was not delivered to: <email@example.com>
because: Delivery time expired
What can I do to diagnose why email to a particular domain sits in mail.box?