Per olof Ljungmark:
> Our MX's use a LDAP directory to lookup valid addresses. Now, if this
> directory for some reason becomes temporarily unavailable, postfix will
> return a 5xx error for ALL incoming messages.
Sorry, that is a well-known bug in YOUR SYSTEM LIBRARY.
Postfix uses the SYSTEM LIBRARY function getpwnam() to look up the
user name, and when LDAP is busted, YOUR SYSTEM LIBRARY getpwnam()
returns that the user does not exist.
So please gt get YOUR SYSTEM LIBRARY fixed and all will be well.
There is ni way that Postfix can determine tat the SYSTEM LIBRARY
function getpwnam() falsely claims that the user does not exist.
Wietse
