Exchange 2007 and email address with an apostrophe

Hello Experts-

I have a situation where a user on my Exchange 2007 box can send email to an email address that has an apostrophe in it.

The receipient then replys and his email gets bounced.  I checked my firewall, and for message patterns it has * so that is not the issue.  I have just (within the last 5 minutes) whitelisted the email address in my spam filter.

The question is, could it be Exchange that is rejecting the message?

Need help on this one.

mbienerDirector of ITAsked:
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TechHammerConnect With a Mentor Commented:
Exchange has an anti-span feature as well so it is entirely possible that Exchange is the one bouncing it.  IF you look at the email you may be able to determine the point of rejection.
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