You can do it this way: Supposed your local domain is yozdom.net
In the virtusers file add this at the end ... @yozdom.net error:nouser No such mailbox If you define a catch-all for all the local domains you should not have this problem. Gregor Bruhin [EMAIL PROTECTED] VIA NET.WORKS (Suisse) SA E-mail: [EMAIL PROTECTED] , http://www.vianetworks.ch P.S. Please send mails with subject, and this question is a sendmail question, please use appropriate m-l. -----Message d'origine----- De : Leonid [mailto:[EMAIL PROTECTED] Envoyé : Montag, 17. März 2003 10:27 À : [EMAIL PROTECTED] Objet : sendmail cyrus 2.0.15 Could i do? if mailbox (user) doesn't not exist, my FreeBSD box will not recieve messages for it when remote host will try to connect to my machine (rcpt to:).