I dont want to block email addresses. Say that i want to block yahoo group mail servers from sending mail to users. The reason i want to block the servers is because the email address that is the from could be
jojo@indiancircusboy.com, and i dont want to block mail that he sends to all my users, I want to block the messages that sent out throught the yahoo group mail servers.
using
*@*.yahoogroups.com will not block the mail.
Abuse to free email services in clude people who want a place to dump messages with attachments through yahoo groups.
simply put to block mail servers you cant specify that by using email addresss.
To stop all mail from the yahoo group service the domain *.yahoogroups.com , *.groups.yahoo.com.