Prevent Looping Message using transport rule

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E

Endrik

Dear All,

I have a problem about routing between Exchange 2010 and Zimbra.

I create send and receive connector in Exchagne to Zimbra vice versa, so that the Exchange system and Zimbra can " talk" ,but I have a problem with a loop message, sometimes loop message happen.

any idea to drop message if loop message detected? I think to using transport rule in exchange, but I don't know how to create the rule.

Regard,

Endrik
 
M

mjolinor

Any rule will be content-specific. The first thing you need to do is examine your emails and find some identifying characteristic that you can test in the rule conditions. It may be subject or body content, or presence or value of a specific header. In some cases you can create the condition if you have control of both of the MTA's involved and can add content or add/set headers on one that can be tested on the other.

What conditions result in a loop being created, and what in the email content or headers can be tested to identify the emails that meet those conditions?

[string](0..33|%{[char][int](46+(" 686552495351636652556262185355647068516270555358646562655775 0645570" ).substring(($_*2),2))})-replace " "
 
A

AndyD_ [MVP]

Yea, I think first you need to indentify why are you creating a loop. Do you allow auto-replies or auto-forwarding to the internet?
 
X

Xiu Zhang

Hi,

I agree with Andy and Mjolinor. We need to clarify what is the loop message and the root cause of the issue.

Could you try to describe the loop message in detail?

Regards,

Xiu
 
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