Lists: > Hi All, > > We are doing an upgrade on the machine that holds the postboxes > (mailenable) during the upgrade the server will need to be rebooted > which renders the boxes unreachable. > This causes a 550 error to be sent back to our spam catching server > (running MailScanner spamassassin and postfix).
That is a terrible configuration error. A host outage should
never result in 5xx mail rejects.
Wietse
