How to configure Exchange Server with AutoReply that sends the reply only once?
Solution 1
Eventually, the solution proved to be rather trivial: add the Precedence: BULK
header to the e-mail (as is common with news letters and such) and replies will not end up in a mail-loop, because they are ignored.
I found this in the general guideline of mail on bulkmail.
Solution 2
I admit I'm no expert at this, but why it would do that is beyond me. I haven't had an Exchange installation do that as far as I recall, it will send the auto-reply once per sender. However, the end-user could with Outlook set up a manual rule that does that (or perhaps this Outlook 2000 KB about orphaned rules causing this is helpful).
Exchange can also be configured to not allow auto-reply outside the organisation at all regardless of user-configured rules, which may be seen as a good practice.
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Abel
Creator of the .NET XSLT 3.0 processor Exselt, which is currently in beta. You can reach me via Twitter (sometimes), by mail at [email protected] (be careful not to look like spam), or through my companies Exselt or Abrasoft (consultancy). I'm an invited expert of the W3C XSLT and XQuery Working Group where we develop the next version of XSLT: version 3.0. Since September 2015 the group went public, which means that most of the mail discussions can now be actively participated in. If you find a bug or other issue with the XSLT 3.0 specification, you can send a mail to [email protected], or you can visit the archives (since Sept 2015).
Updated on September 17, 2022Comments
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Abel over 1 year
If you configure Exchange Server 2007 for auto-reply on a public address, and the reply is sent to an address that also has auto-reply or out-of-office-auto-reply, then Exchange Server will receive a new message, same from-address, and will again send an auto-reply. This can go on forever and can potentially lead to a DoS situation.
How can I prevent multiple sending of auto-reply to the same address, preferably in a given timeframe (to prevent legitimate multiple mails to be treated incorrectly), using Exchange Server 2007?
Our XS hosting provider says it cannot be done, but that strikes me as odd.
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splattne over 14 yearsI'm pretty sure that Exchange with the default configuration does send only one message per email address. Hmm...
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Abel over 14 yearsFor out-of-office, yes. For auto-reply, no.
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Abel over 14 yearsThe auto-reply is on a public box, saying something like "thanks for your mail, we'll be answering your query shortly". If you say the auto-reply should not re-reply to an out-of-office message, then something else is up.