[dba-Tech] SMTP error messages

Hi all
 
A user has asked me why our e-mails keep getting bounced from on particular
destination, and with a bit of investigation, I've found that all the
"bounces" are in fact error messages, simply saying "SMTP Error Code 554
Transaction Failed". I've spent the past half hour on the web trying to find
out precisely what this means, and have come up with absolutely nothing.
Does it just mean that it failed and no-one knows why? How do I fix it?
 
 
Jon


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