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Hello everyone,
I am facing a situation that I am not sure I can handle - but lets see if anyone will be able to provide an advice.
I need to somehow modify From address for incoming email from internet, so it looks like it has been sent from one of our internal accounts (account that exists in local Active Directory).
How to do that, is that even possible? Can I modify the header via Transport rule (if so, how exactly do I modify FROM)?
Or is this in scope of Exchange Edge server (we have hybrid environment, so I can also involve Edge server). Edge server has something like Rewrite rule cmdlet for powershell, but this seems to be working only for rewrite for outgoing email, it does not modify senders address in a header.
So...any clues how to achieve this?
Thank you,
Tomas
Ah, sorry, I must have misread your question.
Alternatively you can create a transport agent on you edge server that will do that.
Hello,
thank you for your reply - can you elaborate on that a little? How do I do that? Is this method able to change the senders address in email header?
Thank you,
Tomas
Hello,
it means you have to create a specific peace of code. Here is an example of a commercal transport agent.
Hello @T Crha!
Welcome to Microsoft QnA!
I am sorry to disappoint you but Exchange does not have this ability at hand for inbound
You can do such a thing with additional 3rd party tools probably , like Email Gateways and Proxies
My original answer is that, no Exchange cannot do that
I hope this helps!
Kindly mark the answer as Accepted and Upvote in case it helped!
Regards
Hello, thank you for your reply. I understand that this may not be possible at all, but just as a last thing to consider - what about a Transport rule in EXO?
Here I can see that I can configure a rule that looks like this:
Is this possible - to modify the header of an incoming mail like this? Because obviously the rule configurator can do something to the header, since the options are there...
Thank you,
Tomas
Hello @T Crha!
I tried but it fails both for FROM: and FROM
T
I hope this helps!
Kindly mark the answer as Accepted and Upvote in case it helped!
Regards
Hello, yes, I get the same error, but thats because the rule is confgured incorrectly - what I need to know is whether it is possible this way or not. Maybe the FROM field needs to be specified in some other way, but in principle, can I achieve what I need via a transport rule?
Thank you
Hello
The syntax is correct i created a rule that removes the HEADER and it worked
Whenever i try to change the FROM to something else it fails
I hope this helps!
Kindly mark the answer as Accepted and Upvote in case it helped!
Regards
an agent perhaps, but this is old and you would need to write your own:
https://gsexdev.blogspot.com/2009/01/from-address-rewriting-in-transport.html