# relay by sender and host exim -bh V4NET.0.0.1 mail from: rcpt to: rset mail from: rcpt to: quit **** exim -bh V4NET.0.0.2 mail from: rcpt to: rset mail from: rcpt to: quit **** exim -bh V4NET.0.0.3 mail from: rcpt to: rset mail from: rcpt to: quit ****