Due to the increase in spam and other ISPs blocking mail from FTH, we were forced to lock down the club mailing lists by only allowing e-mail sent from one of the registered e-mail addresses in the club.
Generally, this is a good thing since most list addresses work this way, but it will no doubt cause a little extra work for members since most members have multiple email addresses they use.
If you do not know what e-mail address is being used for your Toastmasters profile, you can go to the "forgot password" link on your FTH website and request your password. The email address that it sends to will be the one on file. Or, even easier, go to the "edit member info" link and edit your information -- your email address will be right there. This address must match your address you are using in your e-mail client.
Right now, there is no option to add other addresses that can send -- only one per member. Perhaps this can be a feature at a later date.
Due to the way these e-mail addresses work, BCC will NOT work. If you do BCC the group address (regular or officer), the message will not be delivered anywhere. "CC" is OK and so is "To", but BCC will not work.