I just sent an email to the USM Alumni Assocation Board members. I received the following message from the USM email server.

:
131.95.82.57 DOES NOT LIKE RECIPIENT.
Remote host said: 550 5.1.1 ... User unknown
Giving up on 131.95.82.57.

My message was also rejected by three other board members' accounts. I use Yahoo! mail. I guess their accounts are set up to block messages from Yahoo!