For reasons I am not too clear about, a user with a POP3 vpopmail account on my qmail server appears to let out his reply address as [EMAIL PROTECTED]%mail.foo.bar foo.bar is a valid domain that I accept mail for, and mail.foo.bar is a valid host in that domain. E-mail to this user generates errors such as: Sorry. Although I'm listed as a best-preference MX or A for that host, it isn't in my control/locals file, so I don't treat it as local. (#5.4.6) I've been through "Life with Qmail" and the FAQ and didn't spot anything. So: what info do I put into what files? TIA, Adam. ____________________________________________________________ Do You Yahoo!? Get your free @yahoo.co.uk address at http://mail.yahoo.co.uk or your free @yahoo.ie address at http://mail.yahoo.ie