Blocked return e-mail addresses

[Trailrider]

Sorta OT:

Pards, when you send someone an e-mail message asking a bunch of questions, it is helpful in getting a reply if your own e-mail address isn't blocked. Just today, I tried twice to reply to some questions, but got a "bounce-back".  From the questioner's e-mail address I suspect he was sending from work, and the company has some filtration on its server.  As I don't have the questioner's alias, I can't try to look him up on one of these forums.