Hi There,
I have an Exchange 2007 server that sits behind and ASA 5400 device, everything works fine but I have one question, when I inspect the SMTP header sent outsite I find the following:
mail.mydomain.com xxx.xxx.xxx.xxx where xxx.xxx.xxx.xxx is my internal Exchange server IP, this might cause a problem in case some one is doing PTR lookup, so how I can remove it or change it to be my external IP, smtp fixup is not an option since it breaks lot of SMTP things.
your advice is highly appreciated.
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