Zitat von Dudi Goldenberg <d...@kolcore.com>:
is there any way to postfix could query the mail users directly from Active Directory?Another reason not to use direct queries is that is for some reason the AD is down, postfix will reject emails destined to it.If use query the AD say once an hour into a hash, postfix will accept the mail and queue it until the AD is ready to accept it.
Postfix will "reject" with a temporary SMTP error so the sender is urged to retry later. So the difference is only queuing at the sender side versus queuing at the receiver side.
Regards Andreas
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