Hello Tony,
I had a look into the ESAs availability and i was unable to get this type of setup to work to have a wildcard value.
I do notice, Reply-to, From headers are within the header side of the email.
The "CC" (at the envelope level are stored as envelope recipients) so we cannot alter it with a wildcard value, however in the "cc" headers which you see on your MUA we might be able to edit with a message filter to look for these headers, find the string .abc@mydomain.com and replace it with @mydomain.com
Essentially when an email comes in with the Header values of
From: Mathew <matthew@cisco.com>
To: Matt <matt.abc@mydomain.com>
CC: anotheruser <anotheruser.abc@mydomain.com>
Reply-To: <matt.abc@mydomain.com>
Subject: This is a test sample
This is a test.
We can re-write these headers so when they appear on the MUA, we can replace anything .abc@mydomain.com to mydomain.com effectively displaying:
From: Mathew <matthew@cisco.com>
To: Matt <matt@mydomain.com>
CC: anotheruser <anotheruser@mydomain.com>
Reply-To: <matt@mydomain.com>
Subject: This is a test sample
This is a test.
In your outlook for example.
I believe this is as far as (i can think of anyway) we can go on the ESA side.
Let me know if this would meet the requirements.
Regards,
Matthew
