vchkpwthe surroundings: redhat7.0 + qmail-1.0.3 + vpopmail-4.9.10 + ucspi-tcp-0.88 + daemontools-0.70. the files related look like below: the file /var/qmail/control/me: mail.mydomain.net the file /var/qmail/control/locals: localhost mail.mydomain.net the file /var/qmail/control/rcpthosts: localhost mail.mydomain.net mydomain.net the file /var/qmail/control/virtualdomains: mydomain.net:mydomain.net testdomain.net:testdomain.net the file /var/qmail/control/defaultdomain: mydomain.net the file /var/qmail/user/assign: +mydomain.net:mydomain.net:501:508:/home/vpopmail/domains/mydomain.net:-:: +testdomain.net-:testdomain.net:501:508:/home/vpopmail/domains/testdomain.ne t:-:: . the file /etc/tcp.smtp: 127.0.0.:allow,RELAYCLIENT='' 129.0.0.:allow,RELAYCLIENT='' 63.108.64.5:allow,RELAYCLIENT='' :allow nothing for /var/qmail/control/plusdomain; (the user vpopmail and group vchkpw have been created before installing vpopmail) the file /service/qmail-pop3d/run: env - PATH="/var/qmail/bin:/usr/local/bin" \ tcpserver -H -R 0 pop-3 \ /var/qmail/bin/qmail-popup mydomain.net \ /home/vpopmail/bin/vchkpw /var/qmail/bin/qmail-pop3d Maildir & I can correctly send and receive email with the users of mydomain.net, which is my default domain, for instance, [EMAIL PROTECTED] but I can't receive email with my second virtual domain testdomain.net from some workstation, although I can successfully send email to the user with the domain testdomain.net. I use the format of address [EMAIL PROTECTED] to send and receive email. what's problem with my configuration or my operation on how to receive email with a second virtual domain ? your any help will be appreciated greatly. lawy