spam

I have a different "From:" and "Reply-To:" address set up for my email acct; this is because I want people to use my professional account in sending me email, but strongly dislike the interface provided by my university, so I have it all forwarded to a gmail account. I am wondering whether this is a common trigger for spam filters, because I have been having problems communicating with academic listservs I'm on -- both in sending mail to them, and in communicating with the administrators about them. How likely is it that my emails are simply not going through?