> Chances are you'll need to modify the webmail software so that it > sends mail via SMTP, then maybe you'll be able to reject it as you > want to (this will depend on the webmail software setting the right > sender address).
Hurray, that worked! I was able block an email after changing SquirrelMail from "sendmail" to "SMTP". FYI, this email server is for internal use, in an environment where people are supposed to only use it to contact their supervisors, and not eachother. thanks!!
